20372820384 has 48 divisors (see below), whose sum is σ = 61118463168. Its totient is φ = 5820805632.

The previous prime is 20372820329. The next prime is 20372820487. The reversal of 20372820384 is 48302827302.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15157677 + ... + 15159020.

It is an arithmetic number, because the mean of its divisors is an integer number (1273301316).

Almost surely, 2^20372820384 is an apocalyptic number.

20372820384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20372820384 is an abundant number, since it is smaller than the sum of its proper divisors (40745642784).

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

20372820384 is a wasteful number, since it uses less digits than its factorization.

20372820384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30316717 (or 30316709 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 39.

The spelling of 20372820384 in words is "twenty billion, three hundred seventy-two million, eight hundred twenty thousand, three hundred eighty-four".