56567020668 has 48 divisors (see below), whose sum is σ = 139956413184. Its totient is φ = 17720789760.

The previous prime is 56567020661. The next prime is 56567020669. The reversal of 56567020668 is 86602076565.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 56567020668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56567020661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59680 + ... + 341607.

It is an arithmetic number, because the mean of its divisors is an integer number (2915758608).

Almost surely, 2^56567020668 is an apocalyptic number.

It is an amenable number.

56567020668 is an abundant number, since it is smaller than the sum of its proper divisors (83389392516).

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

56567020668 is a wasteful number, since it uses less digits than its factorization.

56567020668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402002 (or 402000 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 56567020668 in words is "fifty-six billion, five hundred sixty-seven million, twenty thousand, six hundred sixty-eight".