12162318488591 has 2 divisors, whose sum is σ = 12162318488592. Its totient is φ = 12162318488590.

The previous prime is 12162318488563. The next prime is 12162318488653. The reversal of 12162318488591 is 19588481326121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12162318488591 - 2¹⁸ = 12162318226447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12162318488591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12162318488501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6081159244295 + 6081159244296.

It is an arithmetic number, because the mean of its divisors is an integer number (6081159244296).

Almost surely, 2^{12162318488591} is an apocalyptic number.

12162318488591 is a deficient number, since it is larger than the sum of its proper divisors (1).

12162318488591 is an equidigital number, since it uses as much as digits as its factorization.

12162318488591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6635520, while the sum is 59.

The spelling of 12162318488591 in words is "twelve trillion, one hundred sixty-two billion, three hundred eighteen million, four hundred eighty-eight thousand, five hundred ninety-one".