56521666710 has 96 divisors (see below), whose sum is σ = 158633691840. Its totient is φ = 13919963904.

The previous prime is 56521666699. The next prime is 56521666769. The reversal of 56521666710 is 1766612565.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 410749 + ... + 530808.

It is an arithmetic number, because the mean of its divisors is an integer number (1652434290).

Almost surely, 2^56521666710 is an apocalyptic number.

56521666710 is an abundant number, since it is smaller than the sum of its proper divisors (102112025130).

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

56521666710 is a wasteful number, since it uses less digits than its factorization.

56521666710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941622 (or 941619 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The spelling of 56521666710 in words is "fifty-six billion, five hundred twenty-one million, six hundred sixty-six thousand, seven hundred ten".