20599315904 has 28 divisors (see below), whose sum is σ = 40986404184. Its totient is φ = 10272033024.

The previous prime is 20599315889. The next prime is 20599315909. The reversal of 20599315904 is 40951399502.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20599315909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407582 + ... + 455325.

Almost surely, 2^20599315904 is an apocalyptic number.

It is an amenable number.

20599315904 is a deficient number, since it is larger than the sum of its proper divisors (20387088280).

20599315904 is an equidigital number, since it uses as much as digits as its factorization.

20599315904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863292 (or 863282 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 47.

The spelling of 20599315904 in words is "twenty billion, five hundred ninety-nine million, three hundred fifteen thousand, nine hundred four".