13956655117 has 2 divisors, whose sum is σ = 13956655118. Its totient is φ = 13956655116.

The previous prime is 13956655081. The next prime is 13956655129. The reversal of 13956655117 is 71155665931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8970741796 + 4985913321 = 94714^2 + 70611^2 .

It is a cyclic number.

It is not a de Polignac number, because 13956655117 - 2²³ = 13948266509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13956655177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6978327558 + 6978327559.

It is an arithmetic number, because the mean of its divisors is an integer number (6978327559).

Almost surely, 2^13956655117 is an apocalyptic number.

It is an amenable number.

13956655117 is a deficient number, since it is larger than the sum of its proper divisors (1).

13956655117 is an equidigital number, since it uses as much as digits as its factorization.

13956655117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 850500, while the sum is 49.

The spelling of 13956655117 in words is "thirteen billion, nine hundred fifty-six million, six hundred fifty-five thousand, one hundred seventeen".