2566423264 has 24 divisors (see below), whose sum is σ = 5083653960. Its totient is φ = 1275336576.

The previous prime is 2566423253. The next prime is 2566423273. The reversal of 2566423264 is 4623246652.

It is a super-4 number, since 4×2566423264⁴ (a number of 39 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240799 + ... + 251230.

It is an arithmetic number, because the mean of its divisors is an integer number (211818915).

Almost surely, 2^2566423264 is an apocalyptic number.

It is an amenable number.

2566423264 is a deficient number, since it is larger than the sum of its proper divisors (2517230696).

2566423264 is a wasteful number, since it uses less digits than its factorization.

2566423264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492202 (or 492194 counting only the distinct ones).

The product of its digits is 414720, while the sum is 40.

The square root of 2566423264 is about 50659.8782469915. The cubic root of 2566423264 is about 1369.1239295736.

The spelling of 2566423264 in words is "two billion, five hundred sixty-six million, four hundred twenty-three thousand, two hundred sixty-four".