12158464999511 has 2 divisors, whose sum is σ = 12158464999512. Its totient is φ = 12158464999510.

The previous prime is 12158464999507. The next prime is 12158464999547. The reversal of 12158464999511 is 11599946485121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12158464999511 - 2² = 12158464999507 is a prime.

It is a super-2 number, since 2×12158464999511² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12158164999511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6079232499755 + 6079232499756.

It is an arithmetic number, because the mean of its divisors is an integer number (6079232499756).

Almost surely, 2^{12158464999511} is an apocalyptic number.

12158464999511 is a deficient number, since it is larger than the sum of its proper divisors (1).

12158464999511 is an equidigital number, since it uses as much as digits as its factorization.

12158464999511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27993600, while the sum is 65.

The spelling of 12158464999511 in words is "twelve trillion, one hundred fifty-eight billion, four hundred sixty-four million, nine hundred ninety-nine thousand, five hundred eleven".