20513440710 has 48 divisors (see below), whose sum is σ = 60954225696. Its totient is φ = 4688786304.

The previous prime is 20513440709. The next prime is 20513440733. The reversal of 20513440710 is 1704431502.

20513440710 is a `hidden beast` number, since 205 + 1 + 3 + 440 + 7 + 10 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16279879 + ... + 16281138.

It is an arithmetic number, because the mean of its divisors is an integer number (1269879702).

Almost surely, 2^20513440710 is an apocalyptic number.

20513440710 is an abundant number, since it is smaller than the sum of its proper divisors (40440784986).

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

20513440710 is a wasteful number, since it uses less digits than its factorization.

20513440710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32561037 (or 32561034 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The spelling of 20513440710 in words is "twenty billion, five hundred thirteen million, four hundred forty thousand, seven hundred ten".