12168637132 has 12 divisors (see below), whose sum is σ = 21298631256. Its totient is φ = 6083313920.

The previous prime is 12168637097. The next prime is 12168637141. The reversal of 12168637132 is 23173686121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223573 + ... + 272620.

It is an arithmetic number, because the mean of its divisors is an integer number (1774885938).

Almost surely, 2^12168637132 is an apocalyptic number.

It is an amenable number.

12168637132 is a deficient number, since it is larger than the sum of its proper divisors (9129994124).

12168637132 is a wasteful number, since it uses less digits than its factorization.

12168637132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502328 (or 502326 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The spelling of 12168637132 in words is "twelve billion, one hundred sixty-eight million, six hundred thirty-seven thousand, one hundred thirty-two".