12668219169 has 16 divisors (see below), whose sum is σ = 16975141440. Its totient is φ = 8403494400.

The previous prime is 12668219167. The next prime is 12668219173. The reversal of 12668219169 is 96191286621.

It is not a de Polignac number, because 12668219169 - 2¹ = 12668219167 is a prime.

It is a super-2 number, since 2×12668219169² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12668219167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 479154 + ... + 504900.

It is an arithmetic number, because the mean of its divisors is an integer number (1060946340).

Almost surely, 2^12668219169 is an apocalyptic number.

It is an amenable number.

12668219169 is a deficient number, since it is larger than the sum of its proper divisors (4306922271).

12668219169 is a wasteful number, since it uses less digits than its factorization.

12668219169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26560.

The product of its digits is 559872, while the sum is 51.

The spelling of 12668219169 in words is "twelve billion, six hundred sixty-eight million, two hundred nineteen thousand, one hundred sixty-nine".