quintillion

/kwɪnˈtɪljən/

Etymology

From French quintillion. By surface analysis, quint- (“five”) + -illion.

noun

  1. Any very large number, exceeding normal description.

num

  1. Either of two very large amounts:; A billion billion: 1 followed by eighteen zeros, 10¹⁸.“Last week, we used[…]the BBC News website's biggest number: 9,223,372,036,854,775,808, that's 9.2 quintillion[…][the maximum video viewer count on YouTube's] updated counter software.”
  2. Either of two very large amounts:; A million quadrillion: 1 followed by 30 zeros, 10³⁰.
  3. An unspecified very large number.“Near-synonyms: gazillion; see also Thesaurus:zillion”