10656764401 has 2 divisors, whose sum is σ = 10656764402. Its totient is φ = 10656764400.

The previous prime is 10656764399. The next prime is 10656764411. The reversal of 10656764401 is 10446765601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7934533776 + 2722230625 = 89076^2 + 52175^2 .

It is a cyclic number.

It is not a de Polignac number, because 10656764401 - 2¹ = 10656764399 is a prime.

It is a super-2 number, since 2×10656764401² (a number of 21 digits) contains 22 as substring.

Together with 10656764399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10656764411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5328382200 + 5328382201.

It is an arithmetic number, because the mean of its divisors is an integer number (5328382201).

Almost surely, 2^10656764401 is an apocalyptic number.

It is an amenable number.

10656764401 is a deficient number, since it is larger than the sum of its proper divisors (1).

10656764401 is an equidigital number, since it uses as much as digits as its factorization.

10656764401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 10656764401 in words is "ten billion, six hundred fifty-six million, seven hundred sixty-four thousand, four hundred one".