165257328 has 40 divisors (see below), whose sum is σ = 432936576. Its totient is φ = 54308800.

The previous prime is 165257321. The next prime is 165257329. The reversal of 165257328 is 823752561.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165257321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20838 + ... + 27653.

Almost surely, 2^165257328 is an apocalyptic number.

It is an amenable number.

165257328 is an abundant number, since it is smaller than the sum of its proper divisors (267679248).

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

165257328 is a wasteful number, since it uses less digits than its factorization.

165257328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48573 (or 48567 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 165257328 is about 12855.2451551886. The cubic root of 165257328 is about 548.7656373071.

The spelling of 165257328 in words is "one hundred sixty-five million, two hundred fifty-seven thousand, three hundred twenty-eight".