165585368 has 16 divisors (see below), whose sum is σ = 334355280. Its totient is φ = 76423968.

The previous prime is 165585319. The next prime is 165585373. The reversal of 165585368 is 863585561.

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, 795980 + ... + 796187.

It is an arithmetic number, because the mean of its divisors is an integer number (20897205).

Almost surely, 2^165585368 is an apocalyptic number.

It is an amenable number.

165585368 is an abundant number, since it is smaller than the sum of its proper divisors (168769912).

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

165585368 is a wasteful number, since it uses less digits than its factorization.

165585368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592186 (or 1592182 counting only the distinct ones).

The product of its digits is 864000, while the sum is 47.

The square root of 165585368 is about 12867.9978240595. The cubic root of 165585368 is about 549.1285018977.

It can be divided in two parts, 165585 and 368, that multiplied together give a triangular number (60935280 = T₁₁₀₃₉).

The spelling of 165585368 in words is "one hundred sixty-five million, five hundred eighty-five thousand, three hundred sixty-eight".