12669495191 has 16 divisors (see below), whose sum is σ = 14075425728. Its totient is φ = 11342707200.

The previous prime is 12669495161. The next prime is 12669495197. The reversal of 12669495191 is 19159496621.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12669495191 is a prime.

It is a super-2 number, since 2×12669495191² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12669495197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18740 + ... + 160281.

It is an arithmetic number, because the mean of its divisors is an integer number (879714108).

Almost surely, 2^12669495191 is an apocalyptic number.

12669495191 is a deficient number, since it is larger than the sum of its proper divisors (1405930537).

12669495191 is a wasteful number, since it uses less digits than its factorization.

12669495191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179242.

The product of its digits is 1049760, while the sum is 53.

The spelling of 12669495191 in words is "twelve billion, six hundred sixty-nine million, four hundred ninety-five thousand, one hundred ninety-one".