20464992696 has 32 divisors (see below), whose sum is σ = 51170979600. Its totient is φ = 6820531200.

The previous prime is 20464992689. The next prime is 20464992727. The reversal of 20464992696 is 69629946402.

It is a happy number.

It is a congruent number.

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, 83560 + ... + 218888.

Almost surely, 2^20464992696 is an apocalyptic number.

It is an amenable number.

20464992696 is an abundant number, since it is smaller than the sum of its proper divisors (30705986904).

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

20464992696 is a wasteful number, since it uses less digits than its factorization.

20464992696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141639 (or 141635 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 57.

The spelling of 20464992696 in words is "twenty billion, four hundred sixty-four million, nine hundred ninety-two thousand, six hundred ninety-six".