165396372 has 24 divisors (see below), whose sum is σ = 387532992. Its totient is φ = 54902400.

The previous prime is 165396353. The next prime is 165396379. The reversal of 165396372 is 273693561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165396379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25704 + ... + 31487.

It is an arithmetic number, because the mean of its divisors is an integer number (16147208).

Almost surely, 2^165396372 is an apocalyptic number.

165396372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165396372 is an abundant number, since it is smaller than the sum of its proper divisors (222136620).

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

165396372 is a wasteful number, since it uses less digits than its factorization.

165396372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57439 (or 57437 counting only the distinct ones).

The product of its digits is 204120, while the sum is 42.

The square root of 165396372 is about 12860.6520830011. The cubic root of 165396372 is about 548.9195007402.

The spelling of 165396372 in words is "one hundred sixty-five million, three hundred ninety-six thousand, three hundred seventy-two".