164630572272 has 60 divisors (see below), whose sum is σ = 460774728024. Its totient is φ = 54872357760.

The previous prime is 164630572217. The next prime is 164630572283. The reversal of 164630572272 is 272275036461.

164630572272 is a `hidden beast` number, since 1 + 6 + 4 + 6 + 3 + 0 + 572 + 2 + 72 = 666.

It is a congruent number.

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, 2035518 + ... + 2114850.

Almost surely, 2^164630572272 is an apocalyptic number.

164630572272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

164630572272 is an abundant number, since it is smaller than the sum of its proper divisors (296144155752).

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

164630572272 is a wasteful number, since it uses less digits than its factorization.

164630572272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93758 (or 93749 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 164630572272 in words is "one hundred sixty-four billion, six hundred thirty million, five hundred seventy-two thousand, two hundred seventy-two".