13375612557 has 24 divisors (see below), whose sum is σ = 19684260960. Its totient is φ = 8749810080.

The previous prime is 13375612541. The next prime is 13375612559. The reversal of 13375612557 is 75521657331.

13375612557 is a `hidden beast` number, since 1 + 3 + 37 + 5 + 61 + 2 + 557 = 666.

It is not a de Polignac number, because 13375612557 - 2⁴ = 13375612541 is a prime.

It is a super-2 number, since 2×13375612557² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13375612559) 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, 200958 + ... + 259104.

It is an arithmetic number, because the mean of its divisors is an integer number (820177540).

Almost surely, 2^13375612557 is an apocalyptic number.

It is an amenable number.

13375612557 is a deficient number, since it is larger than the sum of its proper divisors (6308648403).

13375612557 is a wasteful number, since it uses less digits than its factorization.

13375612557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58633 (or 58630 counting only the distinct ones).

The product of its digits is 661500, while the sum is 45.

The spelling of 13375612557 in words is "thirteen billion, three hundred seventy-five million, six hundred twelve thousand, five hundred fifty-seven".