13166118815 has 8 divisors (see below), whose sum is σ = 15801535968. Its totient is φ = 10531432800.

The previous prime is 13166118767. The next prime is 13166118839. The reversal of 13166118815 is 51881166131.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-13166118815 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142352 + ... + 215861.

It is an arithmetic number, because the mean of its divisors is an integer number (1975191996).

Almost surely, 2^13166118815 is an apocalyptic number.

13166118815 is a deficient number, since it is larger than the sum of its proper divisors (2635417153).

13166118815 is an equidigital number, since it uses as much as digits as its factorization.

13166118815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365569.

The product of its digits is 34560, while the sum is 41.

The spelling of 13166118815 in words is "thirteen billion, one hundred sixty-six million, one hundred eighteen thousand, eight hundred fifteen".