12951545136 has 20 divisors (see below), whose sum is σ = 33458158392. Its totient is φ = 4317181696.

The previous prime is 12951545099. The next prime is 12951545141. The reversal of 12951545136 is 63154515921.

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, 134911881 + ... + 134911976.

Almost surely, 2^12951545136 is an apocalyptic number.

12951545136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12951545136 is an abundant number, since it is smaller than the sum of its proper divisors (20506613256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12951545136 is a wasteful number, since it uses less digits than its factorization.

12951545136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269823868 (or 269823862 counting only the distinct ones).

The product of its digits is 162000, while the sum is 42.

The spelling of 12951545136 in words is "twelve billion, nine hundred fifty-one million, five hundred forty-five thousand, one hundred thirty-six".