2115115166 has 4 divisors (see below), whose sum is σ = 3172672752. Its totient is φ = 1057557582.

The previous prime is 2115115157. The next prime is 2115115181. The reversal of 2115115166 is 6615115112.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528778790 + ... + 528778793.

It is an arithmetic number, because the mean of its divisors is an integer number (793168188).

Almost surely, 2^2115115166 is an apocalyptic number.

2115115166 is a deficient number, since it is larger than the sum of its proper divisors (1057557586).

2115115166 is a wasteful number, since it uses less digits than its factorization.

2115115166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057557585.

The product of its digits is 1800, while the sum is 29.

The square root of 2115115166 is about 45990.3812334710. The cubic root of 2115115166 is about 1283.6442303083.

The spelling of 2115115166 in words is "two billion, one hundred fifteen million, one hundred fifteen thousand, one hundred sixty-six".