165488556 has 24 divisors (see below), whose sum is σ = 406463680. Its totient is φ = 52259472.

The previous prime is 165488549. The next prime is 165488579. The reversal of 165488556 is 655884561.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362686 + ... + 363141.

Almost surely, 2^165488556 is an apocalyptic number.

It is an amenable number.

165488556 is an abundant number, since it is smaller than the sum of its proper divisors (240975124).

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

165488556 is a wasteful number, since it uses less digits than its factorization.

165488556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725853 (or 725851 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 48.

The square root of 165488556 is about 12864.2355388884. The cubic root of 165488556 is about 549.0214622616.

The spelling of 165488556 in words is "one hundred sixty-five million, four hundred eighty-eight thousand, five hundred fifty-six".