166155034534872 has 64 divisors (see below), whose sum is σ = 416570717306880. Its totient is φ = 55227265539072.

The previous prime is 166155034534849. The next prime is 166155034534919. The reversal of 166155034534872 is 278435430551661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 807168553 + ... + 807374375.

It is an arithmetic number, because the mean of its divisors is an integer number (6508917457920).

Almost surely, 2^{166155034534872} is an apocalyptic number.

166155034534872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166155034534872 is an abundant number, since it is smaller than the sum of its proper divisors (250415682772008).

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

166155034534872 is a wasteful number, since it uses less digits than its factorization.

166155034534872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301472 (or 301468 counting only the distinct ones).

The product of its (nonzero) digits is 72576000, while the sum is 60.

The spelling of 166155034534872 in words is "one hundred sixty-six trillion, one hundred fifty-five billion, thirty-four million, five hundred thirty-four thousand, eight hundred seventy-two".