20936758624 has 12 divisors (see below), whose sum is σ = 41219243604. Its totient is φ = 10468379296.

The previous prime is 20936758613. The next prime is 20936758639. The reversal of 20936758624 is 42685763902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327136822 + ... + 327136885.

It is an arithmetic number, because the mean of its divisors is an integer number (3434936967).

Almost surely, 2^20936758624 is an apocalyptic number.

It is an amenable number.

20936758624 is a deficient number, since it is larger than the sum of its proper divisors (20282484980).

20936758624 is an equidigital number, since it uses as much as digits as its factorization.

20936758624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654273717 (or 654273709 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 20936758624 in words is "twenty billion, nine hundred thirty-six million, seven hundred fifty-eight thousand, six hundred twenty-four".