13756445161 has 2 divisors, whose sum is σ = 13756445162. Its totient is φ = 13756445160.

The previous prime is 13756445117. The next prime is 13756445167. The reversal of 13756445161 is 16154465731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11678908761 + 2077536400 = 108069^2 + 45580^2 .

It is an emirp because it is prime and its reverse (16154465731) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13756445161 is a prime.

It is not a weakly prime, because it can be changed into another prime (13756445167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6878222580 + 6878222581.

It is an arithmetic number, because the mean of its divisors is an integer number (6878222581).

Almost surely, 2^13756445161 is an apocalyptic number.

It is an amenable number.

13756445161 is a deficient number, since it is larger than the sum of its proper divisors (1).

13756445161 is an equidigital number, since it uses as much as digits as its factorization.

13756445161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 43.

The spelling of 13756445161 in words is "thirteen billion, seven hundred fifty-six million, four hundred forty-five thousand, one hundred sixty-one".