2066166115 has 24 divisors (see below), whose sum is σ = 2826120240. Its totient is φ = 1445468544.

The previous prime is 2066166083. The next prime is 2066166119. The reversal of 2066166115 is 5116616602.

It is a happy number.

It is not a de Polignac number, because 2066166115 - 2⁵ = 2066166083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2066166119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48292 + ... + 80401.

It is an arithmetic number, because the mean of its divisors is an integer number (117755010).

Almost surely, 2^2066166115 is an apocalyptic number.

2066166115 is a deficient number, since it is larger than the sum of its proper divisors (759954125).

2066166115 is a wasteful number, since it uses less digits than its factorization.

2066166115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128743 (or 128730 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 2066166115 is about 45455.0999888901. The cubic root of 2066166115 is about 1273.6646000329.

The spelling of 2066166115 in words is "two billion, sixty-six million, one hundred sixty-six thousand, one hundred fifteen".