165790955 has 16 divisors (see below), whose sum is σ = 217382400. Its totient is φ = 120382560.

The previous prime is 165790951. The next prime is 165790967. The reversal of 165790955 is 559097561.

It is not a de Polignac number, because 165790955 - 2² = 165790951 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165790951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38606 + ... + 42684.

It is an arithmetic number, because the mean of its divisors is an integer number (13586400).

Almost surely, 2^165790955 is an apocalyptic number.

165790955 is a deficient number, since it is larger than the sum of its proper divisors (51591445).

165790955 is a wasteful number, since it uses less digits than its factorization.

165790955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4834.

The product of its (nonzero) digits is 425250, while the sum is 47.

The square root of 165790955 is about 12875.9836517448. The cubic root of 165790955 is about 549.3556696980.

The spelling of 165790955 in words is "one hundred sixty-five million, seven hundred ninety thousand, nine hundred fifty-five".