32120336172 has 48 divisors (see below), whose sum is σ = 75765697280. Its totient is φ = 10590136128.

The previous prime is 32120336167. The next prime is 32120336173. The reversal of 32120336172 is 27163302123.

It is a super-2 number, since 2×32120336172² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (32120336173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1046598 + ... + 1076850.

Almost surely, 2^32120336172 is an apocalyptic number.

It is an amenable number.

32120336172 is an abundant number, since it is smaller than the sum of its proper divisors (43645361108).

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

32120336172 is a wasteful number, since it uses less digits than its factorization.

32120336172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31222 (or 31220 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 30.

Adding to 32120336172 its reverse (27163302123), we get a palindrome (59283638295).

The spelling of 32120336172 in words is "thirty-two billion, one hundred twenty million, three hundred thirty-six thousand, one hundred seventy-two".