165628724 has 24 divisors (see below), whose sum is σ = 300494880. Its totient is φ = 79815456.

The previous prime is 165628717. The next prime is 165628783. The reversal of 165628724 is 427826561.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 10607 + ... + 21065.

It is an arithmetic number, because the mean of its divisors is an integer number (12520620).

Almost surely, 2^165628724 is an apocalyptic number.

It is an amenable number.

165628724 is a deficient number, since it is larger than the sum of its proper divisors (134866156).

165628724 is a wasteful number, since it uses less digits than its factorization.

165628724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10607 (or 10605 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 165628724 is about 12869.6823581625. The cubic root of 165628724 is about 549.1764246862.

The spelling of 165628724 in words is "one hundred sixty-five million, six hundred twenty-eight thousand, seven hundred twenty-four".