165356868432 has 120 divisors (see below), whose sum is σ = 509034419712. Its totient is φ = 46092480000.

The previous prime is 165356868431. The next prime is 165356868581. The reversal of 165356868432 is 234868653561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165356868431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 760944 + ... + 953807.

Almost surely, 2^165356868432 is an apocalyptic number.

165356868432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165356868432 is an abundant number, since it is smaller than the sum of its proper divisors (343677551280).

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

165356868432 is a wasteful number, since it uses less digits than its factorization.

165356868432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714817 (or 1714804 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 57.

The spelling of 165356868432 in words is "one hundred sixty-five billion, three hundred fifty-six million, eight hundred sixty-eight thousand, four hundred thirty-two".