2566885722 has 16 divisors (see below), whose sum is σ = 5195625120. Its totient is φ = 845319632.

The previous prime is 2566885703. The next prime is 2566885733. The reversal of 2566885722 is 2275886652.

It is a super-2 number, since 2×2566885722² = 13177804619614922568, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 2576697 + ... + 2577692.

It is an arithmetic number, because the mean of its divisors is an integer number (324726570).

Almost surely, 2^2566885722 is an apocalyptic number.

2566885722 is an abundant number, since it is smaller than the sum of its proper divisors (2628739398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2566885722 is a wasteful number, since it uses less digits than its factorization.

2566885722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5154477.

The product of its digits is 3225600, while the sum is 51.

The square root of 2566885722 is about 50664.4423831942. The cubic root of 2566885722 is about 1369.2061613052.

The spelling of 2566885722 in words is "two billion, five hundred sixty-six million, eight hundred eighty-five thousand, seven hundred twenty-two".