656056762993 has 2 divisors, whose sum is σ = 656056762994. Its totient is φ = 656056762992.

The previous prime is 656056762987. The next prime is 656056763003. The reversal of 656056762993 is 399267650656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 638605560384 + 17451202609 = 799128^2 + 132103^2 .

It is a cyclic number.

It is not a de Polignac number, because 656056762993 - 2³³ = 647466828401 is a prime.

It is not a weakly prime, because it can be changed into another prime (656056762943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328028381496 + 328028381497.

It is an arithmetic number, because the mean of its divisors is an integer number (328028381497).

Almost surely, 2^656056762993 is an apocalyptic number.

It is an amenable number.

656056762993 is a deficient number, since it is larger than the sum of its proper divisors (1).

656056762993 is an equidigital number, since it uses as much as digits as its factorization.

656056762993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110224800, while the sum is 64.

The spelling of 656056762993 in words is "six hundred fifty-six billion, fifty-six million, seven hundred sixty-two thousand, nine hundred ninety-three".