12566170944 has 84 divisors (see below), whose sum is σ = 36512188596. Its totient is φ = 4131330048.

The previous prime is 12566170937. The next prime is 12566170949. The reversal of 12566170944 is 44907166521.

12566170944 is a `hidden beast` number, since 1 + 25 + 6 + 617 + 0 + 9 + 4 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9276001344 + 3290169600 = 96312^2 + 57360^2 .

It is a super-2 number, since 2×12566170944² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12566170944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12566170949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107379 + ... + 191474.

Almost surely, 2^12566170944 is an apocalyptic number.

It is an amenable number.

12566170944 is an abundant number, since it is smaller than the sum of its proper divisors (23946017652).

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

12566170944 is a wasteful number, since it uses less digits than its factorization.

12566170944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298944 (or 298931 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 12566170944 in words is "twelve billion, five hundred sixty-six million, one hundred seventy thousand, nine hundred forty-four".