165465328 has 20 divisors (see below), whose sum is σ = 366387760. Its totient is φ = 70913664.

The previous prime is 165465317. The next prime is 165465337. The reversal of 165465328 is 823564561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 738573 + ... + 738796.

It is an arithmetic number, because the mean of its divisors is an integer number (18319388).

Almost surely, 2^165465328 is an apocalyptic number.

It is an amenable number.

165465328 is an abundant number, since it is smaller than the sum of its proper divisors (200922432).

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

165465328 is a wasteful number, since it uses less digits than its factorization.

165465328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477384 (or 1477378 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 165465328 is about 12863.3326941349. The cubic root of 165465328 is about 548.9957741465.

The spelling of 165465328 in words is "one hundred sixty-five million, four hundred sixty-five thousand, three hundred twenty-eight".