20368338372 has 36 divisors (see below), whose sum is σ = 52138369920. Its totient is φ = 6703502832.

The previous prime is 20368338269. The next prime is 20368338377. The reversal of 20368338372 is 27383386302.

20368338372 is a `hidden beast` number, since 203 + 68 + 3 + 383 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×20368338372² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20368338377) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3578088 + ... + 3583775.

Almost surely, 2^20368338372 is an apocalyptic number.

It is an amenable number.

20368338372 is an abundant number, since it is smaller than the sum of its proper divisors (31770031548).

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

20368338372 is a wasteful number, since it uses less digits than its factorization.

20368338372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7161952 (or 7161947 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 20368338372 in words is "twenty billion, three hundred sixty-eight million, three hundred thirty-eight thousand, three hundred seventy-two".