It is a weak prime.
It is a cyclic number.
It is a self number, because there is not a number n which added to its sum of digits gives 166670015190001.
Almost surely, 2166670015190001 is an apocalyptic number.
It is an amenable number.
166670015190001 is an equidigital number, since it uses as much as digits as its factorization.
166670015190001 is an evil number, because the sum of its binary digits is even.
The spelling of 166670015190001 in words is "one hundred sixty-six trillion, six hundred seventy billion, fifteen million, one hundred ninety thousand, one".