quintilhão

Portuguese

Portuguese numbers ^(edit)

[a], [b] ←  1012	[a], [b], [c] ←  1015	1018	1021  → [a], [b]	1024  → [a], [b], [c]
Cardinal (Brazil): um quintilhão     Cardinal (everywhere but Brazil): um trilião     Ordinal (Brazil): quintilionésimo     Ordinal (Portugal): trilionésimo     Fractional (Brazil): quintilionésimo, um quintilhão avos     Fractional (Portugal): trilionésimo     Fractional (everywhere but Brazil): um trilião avos
Portuguese Wikipedia article on 1018

Etymology

Borrowed from French quintillion.

Pronunciation

• (Brazil) IPA^(key): /kĩ.t͡ʃiˈʎɐ̃w̃/ [kĩ.t͡ʃiˈʎɐ̃ʊ̯̃]

• (Portugal) IPA^(key): /kĩ.tiˈʎɐ̃w̃/

• Hyphenation: quin‧ti‧lhão

Noun

quintilhão m (plural quintilhões)

1. (Brazil, cardinal number) quintillion (10¹⁸)

   Synonym: (Angola, Portugal) trilião

2. (Portugal, informal, cardinal number) Synonym of quintilião (“10³⁰”)

Usage notes

• Portuguese-speaking countries follow the traditional long scale, with the exception of Brazil which adopted the short scale used in the UK and US. The number 10¹⁸ is expressed as mil triliões in African and European Portuguese, but as um trilhão in Brazilian Portuguese.
• The Angolan Government proscribes the use of long scale.
• In Portugal, the alternative um quintilhão (“10³⁰”) is an informal spelling of the preferred and proscribed um trilião.