Usually means: Eighteen zeros after a one.
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We found 9 dictionaries that define the word octodecillion:

General (7 matching dictionaries)
  1. octodecillion: Merriam-Webster
  2. octodecillion: American Heritage Dictionary of the English Language
  3. octodecillion: Collins English Dictionary
  4. octodecillion: Wiktionary
  5. octodecillion: Infoplease Dictionary
  6. octodecillion: Dictionary.com
  7. octodecillion: TheFreeDictionary.com

Computing (1 matching dictionary)
  1. octodecillion: CCI Computer

Science (1 matching dictionary)
  1. Octodecillion: Eric Weisstein's World of Mathematics

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Definitions from Wiktionary (octodecillion)

▸ noun:  (US, modern British and Australian, short scale, rare) 10⁵⁷.
▸ noun:  (dated British and Australian, long scale, rare) 10¹⁰⁸.

Similar:
duodecillionth, decillionth, undecillionth, octenary, octodecimo, octillionth, octad, duodecimate, octode, decimal dozen, more...

Opposite:
undecillion, decillion, nonillion, octillion

▸ Words similar to octodecillion

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▸ Rhymes of octodecillion

▸ Invented words related to octodecillion

Similar:
duodecillionth, decillionth, undecillionth, octenary, octodecimo, octillionth, octad, duodecimate, octode, decimal dozen, more...

Opposite:
undecillion, decillion, nonillion, octillion



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