A quadrillion is a million, million, million, millions or 10^24 from quad for four, you see a quadbike does not have two and a half wheels, just as a tricycle does not have two wheels (...look up trillion).
A quadrillion dollars is a million, million, million, millions of dollars or $1, 000 000, 000 000, 000 000, 000 000.
by Repete456 December 28, 2009
Get the QUADRILLION mug.by 5'1"Racer February 12, 2005
Get the quadrillion mug.An extremely large number, even larger than fifteenty trillion. Decimal form: 190,000,000,000,000,000. Prefix: hectononagintapeta. Reverse: femtocentinonaginti.
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Get the ninteenty quadrillion mug.I wonder how many planets are in No Man's Sky?
18 quintilton 446 quadrillion 774 trillion 073 billion 709 million 551 thousand 616 planets
18 quintilton 446 quadrillion 774 trillion 073 billion 709 million 551 thousand 616 planets
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Get the #1 superduperduperestduper * quadrillion buddy in the whole universe mug.Pronunciation: /kwɑ ˈdrɪl.jə.nəl/
Definition:
1. The ordinal number symbol: 1,000,000,000,000,000.
2. The position in a sequence representing a quadrillion-unit division.
3. Pertaining to an almost incalculably minute fraction, one part in a quadrillion, used in theoretical mathematics and extreme-scale cosmology.
4. Denoting a probability or measurement so infinitesimal that it exists primarily in theoretical or abstract computational models.
Significance:
• It defines the quadrillionth position with systematic regularity and clarity.
• It emphasizes abstract mathematical limits, multiversal probabilities, and extreme scalar comparisons.
• It identifies theoretical limits in combinatorial mathematics, potential multiverse calculations, and hyper-precise constants in string theory.
• It avoids irregular and ambiguous pronunciations associated with Germanic numeric forms.
• It simplifies expressions of near-infinite divisibility and abstract magnitude in pure mathematics and theoretical cosmology.
• It improves precision in discussions of Gödel-like incompleteness scales, potential parallel universe statistics, and the limits of computational modeling.
• It replaces Scandinavian-Germanic, Non-American, foreign, and Anglo-Saxon terms, similar to replacing "quadrillionth" with a consistent Latinate ordinal form.
Ordinal number: quadrillional (1,000,000,000,000,000th)
Cardinal number: quadrillion (1,000,000,000,000,000)
Definition:
1. The ordinal number symbol: 1,000,000,000,000,000.
2. The position in a sequence representing a quadrillion-unit division.
3. Pertaining to an almost incalculably minute fraction, one part in a quadrillion, used in theoretical mathematics and extreme-scale cosmology.
4. Denoting a probability or measurement so infinitesimal that it exists primarily in theoretical or abstract computational models.
Significance:
• It defines the quadrillionth position with systematic regularity and clarity.
• It emphasizes abstract mathematical limits, multiversal probabilities, and extreme scalar comparisons.
• It identifies theoretical limits in combinatorial mathematics, potential multiverse calculations, and hyper-precise constants in string theory.
• It avoids irregular and ambiguous pronunciations associated with Germanic numeric forms.
• It simplifies expressions of near-infinite divisibility and abstract magnitude in pure mathematics and theoretical cosmology.
• It improves precision in discussions of Gödel-like incompleteness scales, potential parallel universe statistics, and the limits of computational modeling.
• It replaces Scandinavian-Germanic, Non-American, foreign, and Anglo-Saxon terms, similar to replacing "quadrillionth" with a consistent Latinate ordinal form.
Ordinal number: quadrillional (1,000,000,000,000,000th)
Cardinal number: quadrillion (1,000,000,000,000,000)
Examples:
• "The number of potential quantum states in that system exceeds a quadrillional."
• "In some cosmological models, the chance of an identical universe is less than one quadrillional."
• "The constant is defined to a precision of a quadrillional unit in the theoretical model."
• "That combinatorial problem has a solution space on the order of quadrillional possibilities."
• "The algorithm's error probability is a quadrillional, rendering it effectively infallible for practical purposes."
• "The number of potential quantum states in that system exceeds a quadrillional."
• "In some cosmological models, the chance of an identical universe is less than one quadrillional."
• "The constant is defined to a precision of a quadrillional unit in the theoretical model."
• "That combinatorial problem has a solution space on the order of quadrillional possibilities."
• "The algorithm's error probability is a quadrillional, rendering it effectively infallible for practical purposes."
by Dmitrio January 13, 2026
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