2566244564 has 24 divisors (see below), whose sum is σ = 4849598208. Its totient is φ = 1181184480.

The previous prime is 2566244561. The next prime is 2566244579. The reversal of 2566244564 is 4654426652.

2566244564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2566244564² = 13171222324519100192, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566244561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48152 + ... + 86319.

It is an arithmetic number, because the mean of its divisors is an integer number (202066592).

Almost surely, 2^2566244564 is an apocalyptic number.

It is an amenable number.

2566244564 is a deficient number, since it is larger than the sum of its proper divisors (2283353644).

2566244564 is a wasteful number, since it uses less digits than its factorization.

2566244564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134855 (or 134853 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 44.

The square root of 2566244564 is about 50658.1144931392. The cubic root of 2566244564 is about 1369.0921514788.

The spelling of 2566244564 in words is "two billion, five hundred sixty-six million, two hundred forty-four thousand, five hundred sixty-four".