32320325856 has 96 divisors (see below), whose sum is σ = 104419542528. Its totient is φ = 8524039680.

The previous prime is 32320325833. The next prime is 32320325887. The reversal of 32320325856 is 65852302323.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1841100 + ... + 1858571.

It is an arithmetic number, because the mean of its divisors is an integer number (1087703568).

Almost surely, 2^32320325856 is an apocalyptic number.

It is an amenable number.

32320325856 is an abundant number, since it is smaller than the sum of its proper divisors (72099216672).

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

32320325856 is a wasteful number, since it uses less digits than its factorization.

32320325856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699704 (or 3699696 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 39.

The spelling of 32320325856 in words is "thirty-two billion, three hundred twenty million, three hundred twenty-five thousand, eight hundred fifty-six".