162556972 has 6 divisors (see below), whose sum is σ = 284474708. Its totient is φ = 81278484.

The previous prime is 162556937. The next prime is 162556991. The reversal of 162556972 is 279655261.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20319618 + ... + 20319625.

Almost surely, 2^162556972 is an apocalyptic number.

It is an amenable number.

162556972 is a deficient number, since it is larger than the sum of its proper divisors (121917736).

162556972 is a wasteful number, since it uses less digits than its factorization.

162556972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40639247 (or 40639245 counting only the distinct ones).

The product of its digits is 226800, while the sum is 43.

The square root of 162556972 is about 12749.7832138433. The cubic root of 162556972 is about 545.7602072436.

The spelling of 162556972 in words is "one hundred sixty-two million, five hundred fifty-six thousand, nine hundred seventy-two".