165376365 has 64 divisors (see below), whose sum is σ = 332716032. Its totient is φ = 68140800.

The previous prime is 165376331. The next prime is 165376397. The reversal of 165376365 is 563673561.

It is a happy number.

It is not a de Polignac number, because 165376365 - 2¹⁰ = 165375341 is a prime.

It is a super-2 number, since 2×165376365² = 54698684201226450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 150759 + ... + 151851.

It is an arithmetic number, because the mean of its divisors is an integer number (5198688).

Almost surely, 2^165376365 is an apocalyptic number.

165376365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165376365 is an abundant number, since it is smaller than the sum of its proper divisors (167339667).

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

165376365 is a wasteful number, since it uses less digits than its factorization.

165376365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250.

The product of its digits is 340200, while the sum is 42.

The square root of 165376365 is about 12859.8742217799. The cubic root of 165376365 is about 548.8973666889.

The spelling of 165376365 in words is "one hundred sixty-five million, three hundred seventy-six thousand, three hundred sixty-five".