12663901169 has 2 divisors, whose sum is σ = 12663901170. Its totient is φ = 12663901168.

The previous prime is 12663901141. The next prime is 12663901207. The reversal of 12663901169 is 96110936621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8437341025 + 4226560144 = 91855^2 + 65012^2 .

It is a cyclic number.

It is not a de Polignac number, because 12663901169 - 2¹⁶ = 12663835633 is a prime.

It is a super-2 number, since 2×12663901169² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12663907169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6331950584 + 6331950585.

It is an arithmetic number, because the mean of its divisors is an integer number (6331950585).

Almost surely, 2^12663901169 is an apocalyptic number.

It is an amenable number.

12663901169 is a deficient number, since it is larger than the sum of its proper divisors (1).

12663901169 is an equidigital number, since it uses as much as digits as its factorization.

12663901169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 44.

The spelling of 12663901169 in words is "twelve billion, six hundred sixty-three million, nine hundred one thousand, one hundred sixty-nine".