165128512 has 28 divisors (see below), whose sum is σ = 328635360. Its totient is φ = 82322816.

The previous prime is 165128507. The next prime is 165128539. The reversal of 165128512 is 215821561.

It is a congruent number.

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, 19383 + ... + 26569.

Almost surely, 2^165128512 is an apocalyptic number.

It is an amenable number.

165128512 is a deficient number, since it is larger than the sum of its proper divisors (163506848).

165128512 is an equidigital number, since it uses as much as digits as its factorization.

165128512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7558 (or 7548 counting only the distinct ones).

The product of its digits is 4800, while the sum is 31.

The square root of 165128512 is about 12850.2339278318. The cubic root of 165128512 is about 548.6230149487.

The spelling of 165128512 in words is "one hundred sixty-five million, one hundred twenty-eight thousand, five hundred twelve".