56497066658 has 18 divisors (see below), whose sum is σ = 85464063867. Its totient is φ = 28011046180.

The previous prime is 56497066657. The next prime is 56497066679. The reversal of 56497066658 is 85666079465.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 28248533329 + 28248533329 = 168073^2 + 168073^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=168073.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56497066658.

It is not an unprimeable number, because it can be changed into a prime (56497066657) 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 8 ways as a sum of consecutive naturals, for example, 44034485 + ... + 44035767.

Almost surely, 2^56497066658 is an apocalyptic number.

56497066658 is a deficient number, since it is larger than the sum of its proper divisors (28966997209).

56497066658 is an frugal number, since it uses more digits than its factorization.

56497066658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830 (or 1416 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 62.

The spelling of 56497066658 in words is "fifty-six billion, four hundred ninety-seven million, sixty-six thousand, six hundred fifty-eight".