56306666568 has 32 divisors (see below), whose sum is σ = 145620691200. Its totient is φ = 18121685568.

The previous prime is 56306666567. The next prime is 56306666617. The reversal of 56306666568 is 86566660365.

It is not an unprimeable number, because it can be changed into a prime (56306666567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40449496 + ... + 40450887.

It is an arithmetic number, because the mean of its divisors is an integer number (4550646600).

Almost surely, 2^56306666568 is an apocalyptic number.

56306666568 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

56306666568 is an abundant number, since it is smaller than the sum of its proper divisors (89314024632).

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

56306666568 is a wasteful number, since it uses less digits than its factorization.

56306666568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80900421 (or 80900417 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 57.

The spelling of 56306666568 in words is "fifty-six billion, three hundred six million, six hundred sixty-six thousand, five hundred sixty-eight".