12490715161 has 2 divisors, whose sum is σ = 12490715162. Its totient is φ = 12490715160.

The previous prime is 12490715143. The next prime is 12490715173. The reversal of 12490715161 is 16151709421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7008201225 + 5482513936 = 83715^2 + 74044^2 .

It is a cyclic number.

It is not a de Polignac number, because 12490715161 - 2⁵ = 12490715129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12490715161.

It is not a weakly prime, because it can be changed into another prime (12490715131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6245357580 + 6245357581.

It is an arithmetic number, because the mean of its divisors is an integer number (6245357581).

Almost surely, 2^12490715161 is an apocalyptic number.

It is an amenable number.

12490715161 is a deficient number, since it is larger than the sum of its proper divisors (1).

12490715161 is an equidigital number, since it uses as much as digits as its factorization.

12490715161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 37.

The spelling of 12490715161 in words is "twelve billion, four hundred ninety million, seven hundred fifteen thousand, one hundred sixty-one".