165165275 has 12 divisors (see below), whose sum is σ = 223423944. Its totient is φ = 120120000.

The previous prime is 165165257. The next prime is 165165283. The reversal of 165165275 is 572561561.

It is not a de Polignac number, because 165165275 - 2¹⁴ = 165148891 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 300026 + ... + 300575.

It is an arithmetic number, because the mean of its divisors is an integer number (18618662).

Almost surely, 2^165165275 is an apocalyptic number.

165165275 is a deficient number, since it is larger than the sum of its proper divisors (58258669).

165165275 is a wasteful number, since it uses less digits than its factorization.

165165275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600622 (or 600617 counting only the distinct ones).

The product of its digits is 63000, while the sum is 38.

The square root of 165165275 is about 12851.6642891106. The cubic root of 165165275 is about 548.6637257282.

The spelling of 165165275 in words is "one hundred sixty-five million, one hundred sixty-five thousand, two hundred seventy-five".