165747916 has 12 divisors (see below), whose sum is σ = 290156832. Its totient is φ = 82845968.

The previous prime is 165747889. The next prime is 165747931. The reversal of 165747916 is 619747561.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 12141 + ... + 21883.

It is an arithmetic number, because the mean of its divisors is an integer number (24179736).

Almost surely, 2^165747916 is an apocalyptic number.

It is an amenable number.

165747916 is a deficient number, since it is larger than the sum of its proper divisors (124408916).

165747916 is a wasteful number, since it uses less digits than its factorization.

165747916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14000 (or 13998 counting only the distinct ones).

The product of its digits is 317520, while the sum is 46.

The square root of 165747916 is about 12874.3122534759. The cubic root of 165747916 is about 549.3081283732.

The spelling of 165747916 in words is "one hundred sixty-five million, seven hundred forty-seven thousand, nine hundred sixteen".