13163558625 has 96 divisors (see below), whose sum is σ = 28547101440. Its totient is φ = 5700844800.

The previous prime is 13163558621. The next prime is 13163558627. The reversal of 13163558625 is 52685536131.

13163558625 is a `hidden beast` number, since 1 + 3 + 1 + 63 + 5 + 586 + 2 + 5 = 666.

It is not a de Polignac number, because 13163558625 - 2² = 13163558621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (13163558621) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 105637 + ... + 193613.

It is an arithmetic number, because the mean of its divisors is an integer number (297365640).

Almost surely, 2^13163558625 is an apocalyptic number.

13163558625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13163558625 is an abundant number, since it is smaller than the sum of its proper divisors (15383542815).

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

13163558625 is a wasteful number, since it uses less digits than its factorization.

13163558625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88024 (or 88011 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The spelling of 13163558625 in words is "thirteen billion, one hundred sixty-three million, five hundred fifty-eight thousand, six hundred twenty-five".