2566275166 has 32 divisors (see below), whose sum is σ = 4987100160. Its totient is φ = 961795296.

The previous prime is 2566275161. The next prime is 2566275169. The reversal of 2566275166 is 6615726652.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566275161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 367606 + ... + 374521.

It is an arithmetic number, because the mean of its divisors is an integer number (155846880).

Almost surely, 2^2566275166 is an apocalyptic number.

2566275166 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2566275166 is a deficient number, since it is larger than the sum of its proper divisors (2420824994).

2566275166 is a wasteful number, since it uses less digits than its factorization.

2566275166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742168.

The product of its digits is 907200, while the sum is 46.

The square root of 2566275166 is about 50658.4165366428. The cubic root of 2566275166 is about 1369.0975935155.

The spelling of 2566275166 in words is "two billion, five hundred sixty-six million, two hundred seventy-five thousand, one hundred sixty-six".