166219700928 has 56 divisors (see below), whose sum is σ = 462936457920. Its totient is φ = 52490430720.

The previous prime is 166219700923. The next prime is 166219700951. The reversal of 166219700928 is 829007912661.

It is a super-2 number, since 2×166219700928² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166219700923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22778658 + ... + 22785953.

Almost surely, 2^166219700928 is an apocalyptic number.

It is an amenable number.

166219700928 is an abundant number, since it is smaller than the sum of its proper divisors (296716756992).

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

166219700928 is a wasteful number, since it uses less digits than its factorization.

166219700928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45564645 (or 45564635 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 51.

The spelling of 166219700928 in words is "one hundred sixty-six billion, two hundred nineteen million, seven hundred thousand, nine hundred twenty-eight".