AskDefine | Define quintillion

Dictionary Definition

quintillion n : the number that is represented as a one followed by 18 zeros

User Contributed Dictionary

see Quintillion




From the prefix quint- (five) + -illion (from million); ie the fifth power of a million, 1030.

Cardinal number

  1. (US; modern British & Australian, short scale) A billion billion: 1 followed by eighteen zeros, 1018.
  2. (dated British & Australian, long scale) A million quadrillion: 1 followed by 30 zeros, 1030.



a billion billion, 1018
  • Dutch: triljoen
  • German: Trillion
  • Greek: πεντάκις εκατομμύριο (pentákis ekatommýrio)
  • Japanese: 百京
  • Russian: квинтиллион
  • Vietnamese: tỷ tỷ
a million quadrillion, 1030
Translations to be checked


  1. In the context of "figurative|slang": Any very large number, exceeding normal description.

Extensive Definition

Names of numbers larger than a quadrillion are almost never used, for reasons discussed further below. It is debatable which of them should be considered real working English vocabulary and which are merely trivia, curiosities, or coinages. The following table lists those names of numbers which are found in many English dictionaries and thus have a special claim to being "real words". The "Traditional British" values shown are unused in American English and are largely obsolete in British English, but are dominant in many non-English-speaking areas, including continental Europe and Spanish-speaking countries in Latin America; see Long and short scales.

The "standard dictionary numbers"

Other large numbers used in mathematics and physics

See also

External links


quintillion in Arabic: مسميات الأعداد الضخمة
quintillion in Danish: Navne på store tal
quintillion in Korean: 큰 수
quintillion in Latin: nomina permagnorum numerorum
quintillion in Dutch: Lijst van grote getallen
quintillion in Polish: Nazwy dużych liczb
quintillion in Russian: Системы наименования чисел
quintillion in Simple English: Octillion
quintillion in Slovenian: imena velikih števil
quintillion in Finnish: Suurten lukujen nimet
quintillion in Swedish: Lista över räkneord
quintillion in Chinese: %E5%8D%81%E8%BF%9B%E5%88%B6#.E7.94.A8.E6.96.87.E5.AD.97.E8.A1.A8.E7.A4.BA.E5.8D.81.E9.80.B2.E6.95.B4.E6.95.B8.E4.BD.8D
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