32100013289920 has 56 divisors (see below), whose sum is σ = 80461217538000. Its totient is φ = 12164215560192.

The previous prime is 32100013289887. The next prime is 32100013289921. The reversal of 32100013289920 is 2998231000123.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32100013289921) 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, 2639797645 + ... + 2639809804.

Almost surely, 2^{32100013289920} is an apocalyptic number.

It is an amenable number.

32100013289920 is an abundant number, since it is smaller than the sum of its proper divisors (48361204248080).

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

32100013289920 is a wasteful number, since it uses less digits than its factorization.

32100013289920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5279607485 (or 5279607475 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 32100013289920 in words is "thirty-two trillion, one hundred billion, thirteen million, two hundred eighty-nine thousand, nine hundred twenty".