亿:1000,000,00
兆:1000,000,000,000 ,百万,古代指万亿
京:1000,000,000,000,000,0 ,指一千万,亦指一亿兆
垓:1000,000,000,000,000,000,00 , 读gāi,指一万万
秭:1000,000,000,000,000,000,000,000 , 读zǐ 古代数目名,一万亿
壤:1000,000,000,000,000,000,000,000,000,0
沟:1后32个0(穰后面是28个0)
涧:1后36个0
正:1后40个0
载:1后44个0
极:1后48个0,