12170876056 has 16 divisors (see below), whose sum is σ = 24021466200. Its totient is φ = 5765151744.

The previous prime is 12170876041. The next prime is 12170876057. The reversal of 12170876056 is 65067807121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12170876057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40035625 + ... + 40035928.

Almost surely, 2^12170876056 is an apocalyptic number.

It is an amenable number.

12170876056 is a deficient number, since it is larger than the sum of its proper divisors (11850590144).

12170876056 is a wasteful number, since it uses less digits than its factorization.

12170876056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80071578 (or 80071574 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

The spelling of 12170876056 in words is "twelve billion, one hundred seventy million, eight hundred seventy-six thousand, fifty-six".