13157173356 has 12 divisors (see below), whose sum is σ = 30700071192. Its totient is φ = 4385724448.

The previous prime is 13157173349. The next prime is 13157173399. The reversal of 13157173356 is 65337175131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×13157173356² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548215545 + ... + 548215568.

It is an arithmetic number, because the mean of its divisors is an integer number (2558339266).

Almost surely, 2^13157173356 is an apocalyptic number.

It is an amenable number.

13157173356 is an abundant number, since it is smaller than the sum of its proper divisors (17542897836).

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

13157173356 is a wasteful number, since it uses less digits than its factorization.

13157173356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1096431120 (or 1096431118 counting only the distinct ones).

The product of its digits is 198450, while the sum is 42.

The spelling of 13157173356 in words is "thirteen billion, one hundred fifty-seven million, one hundred seventy-three thousand, three hundred fifty-six".