13176232056 has 96 divisors (see below), whose sum is σ = 39155931360. Its totient is φ = 3977715456.

The previous prime is 13176232051. The next prime is 13176232057. The reversal of 13176232056 is 65023267131.

13176232056 is a `hidden beast` number, since 1 + 3 + 1 + 7 + 623 + 20 + 5 + 6 = 666.

It is a super-2 number, since 2×13176232056² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 13176232056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13176232051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83196 + ... + 182411.

It is an arithmetic number, because the mean of its divisors is an integer number (407874285).

Almost surely, 2^13176232056 is an apocalyptic number.

It is an amenable number.

13176232056 is an abundant number, since it is smaller than the sum of its proper divisors (25979699304).

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

13176232056 is a wasteful number, since it uses less digits than its factorization.

13176232056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265685 (or 265678 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

Adding to 13176232056 its reverse (65023267131), we get a palindrome (78199499187).

The spelling of 13176232056 in words is "thirteen billion, one hundred seventy-six million, two hundred thirty-two thousand, fifty-six".