Names of Large Numbers

1 million = 1 × 10⁶ or 1,000,000
1 billion = 1 × 10⁹ or 1,000,000,000
1 trillion = 1 × 10¹² or 1,000,000,000,000

1 quadrillion = 1 × 10¹⁵
1 quintillion = 1 × 10¹⁸
1 sextillion = 1 × 10²¹
1 septillion = 1 × 10²⁴
1 octillion = 1 × 10²⁷
1 nonillion = 1 × 10³⁰

1 decillion = 1 × 10³³
1 undecillion = 1 × 10³⁶
1 duodecillion = 1 × 10³⁹
1 tredecillion = 1 × 10⁴²
1 quattuordecillion = 1 × 10⁴⁵
1 quindecillion = 1 × 10⁴⁸

1 sexdecillion = 1 × 10⁵¹
1 septemdecillion = 1 × 10⁵⁴
1 octodecillion = 1 × 10⁵⁷
1 novemdecillion = 1 × 10⁶⁰

1 vigintillion = 1 × 10⁶³
1 unvigintillion (or vigintunillion) = 1 × 10⁶⁶
1 duovigintillion (or vigintiduoillion) = 1 × 10⁶⁹
1 trevigintillion (or vigintitrillion) = 1 × 10⁷²
1 quattuorvigintillion (or vigintiquadrillion) = 1 × 10⁷⁵
1 quinvigintillion (or vigintiquintrillion) = 1 × 10⁷⁸
1 sexvigintillion (or vigintisextillion) = 1 × 10⁸¹
1 septvigintillion (or vigintiseptillion) = 1 × 10⁸⁴
1 octovigintillion (or vigintoctillion) = 1 × 10⁸⁷
1 nonvigintillion (or vigintinonillion) = 1 × 10⁹⁰

1 trigintillion = 1 × 10⁹³
1 untrigintillion = 1 × 10⁹⁶
1 duotrigintillion = 1 × 10⁹⁹
Ten-duotrigintillion = googol = 1 × 10¹⁰⁰

Quantity	Short scale	Long scale
106	million	million
109	billion	milliard
1012	trillion	billion
1015	quadrillion	billiard
1018	quintillion	trillion
1021	sextillion	trilliard