15106660401913 has 2 divisors, whose sum is σ = 15106660401914. Its totient is φ = 15106660401912.

The previous prime is 15106660401851. The next prime is 15106660401947. The reversal of 15106660401913 is 31910406660151.

15106660401913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11717497224889 + 3389163177024 = 3423083^2 + 1840968^2 .

It is a cyclic number.

It is not a de Polignac number, because 15106660401913 - 2²⁹ = 15106123531001 is a prime.

It is a super-2 number, since 2×15106660401913² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15106660401913.

It is not a weakly prime, because it can be changed into another prime (15106660401953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7553330200956 + 7553330200957.

It is an arithmetic number, because the mean of its divisors is an integer number (7553330200957).

Almost surely, 2^{15106660401913} is an apocalyptic number.

It is an amenable number.

15106660401913 is a deficient number, since it is larger than the sum of its proper divisors (1).

15106660401913 is an equidigital number, since it uses as much as digits as its factorization.

15106660401913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 15106660401913 in words is "fifteen trillion, one hundred six billion, six hundred sixty million, four hundred one thousand, nine hundred thirteen".