165732972 has 24 divisors (see below), whose sum is σ = 407064000. Its totient is φ = 52336656.

The previous prime is 165732943. The next prime is 165732977. The reversal of 165732972 is 279237561.

It is not an unprimeable number, because it can be changed into a prime (165732977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363222 + ... + 363677.

It is an arithmetic number, because the mean of its divisors is an integer number (16961000).

Almost surely, 2^165732972 is an apocalyptic number.

165732972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165732972 is an abundant number, since it is smaller than the sum of its proper divisors (241331028).

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

165732972 is a wasteful number, since it uses less digits than its factorization.

165732972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726925 (or 726923 counting only the distinct ones).

The product of its digits is 158760, while the sum is 42.

The square root of 165732972 is about 12873.7318598765. The cubic root of 165732972 is about 549.2916191513.

The spelling of 165732972 in words is "one hundred sixty-five million, seven hundred thirty-two thousand, nine hundred seventy-two".