20972908496032 has 96 divisors (see below), whose sum is σ = 43680377018880. Its totient is φ = 9892094699520.

The previous prime is 20972908496027. The next prime is 20972908496093. The reversal of 20972908496032 is 23069480927902.

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, 865599694 + ... + 865623922.

It is an arithmetic number, because the mean of its divisors is an integer number (455003927280).

Almost surely, 2^{20972908496032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20972908496032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21840188509440).

20972908496032 is an abundant number, since it is smaller than the sum of its proper divisors (22707468522848).

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

20972908496032 is a wasteful number, since it uses less digits than its factorization.

20972908496032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40446 (or 40438 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 61.

The spelling of 20972908496032 in words is "twenty trillion, nine hundred seventy-two billion, nine hundred eight million, four hundred ninety-six thousand, thirty-two".