166850001850 has 24 divisors (see below), whose sum is σ = 354675433248. Its totient is φ = 57205714800.

The previous prime is 166850001803. The next prime is 166850001883. The reversal of 166850001850 is 58100058661.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 238356796 + ... + 238357495.

It is an arithmetic number, because the mean of its divisors is an integer number (14778143052).

Almost surely, 2^166850001850 is an apocalyptic number.

166850001850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166850001850 is an abundant number, since it is smaller than the sum of its proper divisors (187825431398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166850001850 is a wasteful number, since it uses less digits than its factorization.

166850001850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476714310 (or 476714305 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 40.

The spelling of 166850001850 in words is "one hundred sixty-six billion, eight hundred fifty million, one thousand, eight hundred fifty".