10656766457 has 2 divisors, whose sum is σ = 10656766458. Its totient is φ = 10656766456.

The previous prime is 10656766423. The next prime is 10656766573. The reversal of 10656766457 is 75466765601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5429331856 + 5227434601 = 73684^2 + 72301^2 .

It is an emirp because it is prime and its reverse (75466765601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10656766457 - 2⁸ = 10656766201 is a prime.

It is a super-2 number, since 2×10656766457² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10656766399 and 10656766408.

It is not a weakly prime, because it can be changed into another prime (10656786457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5328383228 + 5328383229.

It is an arithmetic number, because the mean of its divisors is an integer number (5328383229).

Almost surely, 2^10656766457 is an apocalyptic number.

It is an amenable number.

10656766457 is a deficient number, since it is larger than the sum of its proper divisors (1).

10656766457 is an equidigital number, since it uses as much as digits as its factorization.

10656766457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6350400, while the sum is 53.

The spelling of 10656766457 in words is "ten billion, six hundred fifty-six million, seven hundred sixty-six thousand, four hundred fifty-seven".