12008636217169 has 2 divisors, whose sum is σ = 12008636217170. Its totient is φ = 12008636217168.

The previous prime is 12008636217157. The next prime is 12008636217187. The reversal of 12008636217169 is 96171263680021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11060865820944 + 947770396225 = 3325788^2 + 973535^2 .

It is a cyclic number.

It is not a de Polignac number, because 12008636217169 - 2⁷ = 12008636217041 is a prime.

It is a super-2 number, since 2×12008636217169² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12008636217119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6004318108584 + 6004318108585.

It is an arithmetic number, because the mean of its divisors is an integer number (6004318108585).

Almost surely, 2^{12008636217169} is an apocalyptic number.

It is an amenable number.

12008636217169 is a deficient number, since it is larger than the sum of its proper divisors (1).

12008636217169 is an equidigital number, since it uses as much as digits as its factorization.

12008636217169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 12008636217169 in words is "twelve trillion, eight billion, six hundred thirty-six million, two hundred seventeen thousand, one hundred sixty-nine".