32172565272 has 16 divisors (see below), whose sum is σ = 80431413240. Its totient is φ = 10724188416.

The previous prime is 32172565237. The next prime is 32172565273. The reversal of 32172565272 is 27256527123.

It is a super-2 number, since 2×32172565272² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32172565273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670261753 + ... + 670261800.

Almost surely, 2^32172565272 is an apocalyptic number.

It is an amenable number.

32172565272 is an abundant number, since it is smaller than the sum of its proper divisors (48258847968).

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

32172565272 is a wasteful number, since it uses less digits than its factorization.

32172565272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340523562 (or 1340523558 counting only the distinct ones).

The product of its digits is 352800, while the sum is 42.

The spelling of 32172565272 in words is "thirty-two billion, one hundred seventy-two million, five hundred sixty-five thousand, two hundred seventy-two".