165027165 has 16 divisors (see below), whose sum is σ = 264539328. Its totient is φ = 87849216.

The previous prime is 165027151. The next prime is 165027209. The reversal of 165027165 is 561720561.

It is not a de Polignac number, because 165027165 - 2⁵ = 165027133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1852 + ... + 18261.

It is an arithmetic number, because the mean of its divisors is an integer number (16533708).

Almost surely, 2^165027165 is an apocalyptic number.

165027165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165027165 is a deficient number, since it is larger than the sum of its proper divisors (99512163).

165027165 is a wasteful number, since it uses less digits than its factorization.

165027165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20668.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 165027165 is about 12846.2899313382. The cubic root of 165027165 is about 548.5107535451.

The spelling of 165027165 in words is "one hundred sixty-five million, twenty-seven thousand, one hundred sixty-five".