quadrillion

the number that is represented as a one followed by 15 zeros
wordnet.princeton.edu/perl/webwn

Any very large number, exceeding normal description
en.wiktionary.org/wiki/quadrillion

觉得亿大的，觉得兆大的，你们学学这个词。哈哈。：）这么大的数，很少用到，除非是钱。你么多钱啊。别担心，cpi数据还是会很低的。为什么呢？骗你傻啊。：）