56615700677 has 2 divisors, whose sum is σ = 56615700678. Its totient is φ = 56615700676.

The previous prime is 56615700629. The next prime is 56615700773. The reversal of 56615700677 is 77600751665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56555498596 + 60202081 = 237814^2 + 7759^2 .

It is a cyclic number.

It is not a de Polignac number, because 56615700677 - 2¹⁰ = 56615699653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56615700077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28307850338 + 28307850339.

It is an arithmetic number, because the mean of its divisors is an integer number (28307850339).

Almost surely, 2^56615700677 is an apocalyptic number.

It is an amenable number.

56615700677 is a deficient number, since it is larger than the sum of its proper divisors (1).

56615700677 is an equidigital number, since it uses as much as digits as its factorization.

56615700677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1852200, while the sum is 50.

The spelling of 56615700677 in words is "fifty-six billion, six hundred fifteen million, seven hundred thousand, six hundred seventy-seven".