12008887156169 has 2 divisors, whose sum is σ = 12008887156170. Its totient is φ = 12008887156168.

The previous prime is 12008887156141. The next prime is 12008887156177. The reversal of 12008887156169 is 96165178880021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7927828609600 + 4081058546569 = 2815640^2 + 2020163^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12008887156169 is a prime.

It is a super-2 number, since 2×12008887156169² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12008887156069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6004443578084 + 6004443578085.

It is an arithmetic number, because the mean of its divisors is an integer number (6004443578085).

Almost surely, 2^{12008887156169} is an apocalyptic number.

It is an amenable number.

12008887156169 is a deficient number, since it is larger than the sum of its proper divisors (1).

12008887156169 is an equidigital number, since it uses as much as digits as its factorization.

12008887156169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11612160, while the sum is 62.

The spelling of 12008887156169 in words is "twelve trillion, eight billion, eight hundred eighty-seven million, one hundred fifty-six thousand, one hundred sixty-nine".