165172337712 has 60 divisors (see below), whose sum is σ = 464807097664. Its totient is φ = 54753252480.

The previous prime is 165172337711. The next prime is 165172337717. The reversal of 165172337712 is 217733271561.

165172337712 is a `hidden beast` number, since 16 + 517 + 23 + 37 + 71 + 2 = 666.

It is a super-2 number, since 2×165172337712² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (165172337711) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3142528 + ... + 3194655.

Almost surely, 2^165172337712 is an apocalyptic number.

165172337712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165172337712 is an abundant number, since it is smaller than the sum of its proper divisors (299634759952).

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

165172337712 is a wasteful number, since it uses less digits than its factorization.

165172337712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6337378 (or 6337369 counting only the distinct ones).

The product of its digits is 370440, while the sum is 45.

The spelling of 165172337712 in words is "one hundred sixty-five billion, one hundred seventy-two million, three hundred thirty-seven thousand, seven hundred twelve".