13231555166 has 8 divisors (see below), whose sum is σ = 20143561800. Its totient is φ = 6517034568.

The previous prime is 13231555153. The next prime is 13231555187. The reversal of 13231555166 is 66155513231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13231555166² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49371341 + ... + 49371608.

It is an arithmetic number, because the mean of its divisors is an integer number (2517945225).

Almost surely, 2^13231555166 is an apocalyptic number.

13231555166 is a deficient number, since it is larger than the sum of its proper divisors (6912006634).

13231555166 is an equidigital number, since it uses as much as digits as its factorization.

13231555166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98743018.

The product of its digits is 81000, while the sum is 38.

The spelling of 13231555166 in words is "thirteen billion, two hundred thirty-one million, five hundred fifty-five thousand, one hundred sixty-six".