179156802972 has 48 divisors (see below), whose sum is σ = 490663685120. Its totient is φ = 49804206912.

The previous prime is 179156802959. The next prime is 179156802977. The reversal of 179156802972 is 279208651971.

It is a super-2 number, since 2×179156802972² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (179156802977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28818772 + ... + 28824987.

Almost surely, 2^179156802972 is an apocalyptic number.

179156802972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

179156802972 is an abundant number, since it is smaller than the sum of its proper divisors (311506882148).

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

179156802972 is a wasteful number, since it uses less digits than its factorization.

179156802972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57643810 (or 57643808 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 57.

The spelling of 179156802972 in words is "one hundred seventy-nine billion, one hundred fifty-six million, eight hundred two thousand, nine hundred seventy-two".