10656789959 has 2 divisors, whose sum is σ = 10656789960. Its totient is φ = 10656789958.

The previous prime is 10656789937. The next prime is 10656789973. The reversal of 10656789959 is 95998765601.

It is a strong prime.

It is an emirp because it is prime and its reverse (95998765601) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10656789959 is a prime.

It is a super-2 number, since 2×10656789959² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 10656789895 and 10656789904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10656759959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5328394979 + 5328394980.

It is an arithmetic number, because the mean of its divisors is an integer number (5328394980).

Almost surely, 2^10656789959 is an apocalyptic number.

10656789959 is a deficient number, since it is larger than the sum of its proper divisors (1).

10656789959 is an equidigital number, since it uses as much as digits as its factorization.

10656789959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36741600, while the sum is 65.

The spelling of 10656789959 in words is "ten billion, six hundred fifty-six million, seven hundred eighty-nine thousand, nine hundred fifty-nine".