12164262641 has 2 divisors, whose sum is σ = 12164262642. Its totient is φ = 12164262640.

The previous prime is 12164262629. The next prime is 12164262683. The reversal of 12164262641 is 14626246121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11215869025 + 948393616 = 105905^2 + 30796^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12164262641 is a prime.

It is not a weakly prime, because it can be changed into another prime (12164262941) 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, 6082131320 + 6082131321.

It is an arithmetic number, because the mean of its divisors is an integer number (6082131321).

Almost surely, 2^12164262641 is an apocalyptic number.

It is an amenable number.

12164262641 is a deficient number, since it is larger than the sum of its proper divisors (1).

12164262641 is an equidigital number, since it uses as much as digits as its factorization.

12164262641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 35.

The spelling of 12164262641 in words is "twelve billion, one hundred sixty-four million, two hundred sixty-two thousand, six hundred forty-one".