12397064161 has 2 divisors, whose sum is σ = 12397064162. Its totient is φ = 12397064160.

The previous prime is 12397064153. The next prime is 12397064297. The reversal of 12397064161 is 16146079321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10723845136 + 1673219025 = 103556^2 + 40905^2 .

It is a cyclic number.

It is not a de Polignac number, because 12397064161 - 2³ = 12397064153 is a prime.

It is not a weakly prime, because it can be changed into another prime (12397064111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6198532080 + 6198532081.

It is an arithmetic number, because the mean of its divisors is an integer number (6198532081).

Almost surely, 2^12397064161 is an apocalyptic number.

It is an amenable number.

12397064161 is a deficient number, since it is larger than the sum of its proper divisors (1).

12397064161 is an equidigital number, since it uses as much as digits as its factorization.

12397064161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 12397064161 in words is "twelve billion, three hundred ninety-seven million, sixty-four thousand, one hundred sixty-one".