2566264560 has 160 divisors (see below), whose sum is σ = 8385320448. Its totient is φ = 647961600.

The previous prime is 2566264513. The next prime is 2566264577. The reversal of 2566264560 is 654626652.

2566264560 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 555219 + ... + 559821.

Almost surely, 2^2566264560 is an apocalyptic number.

2566264560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2566264560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4192660224).

2566264560 is an abundant number, since it is smaller than the sum of its proper divisors (5819055888).

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

2566264560 is a wasteful number, since it uses less digits than its factorization.

2566264560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4743 (or 4737 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The square root of 2566264560 is about 50658.3118550155. The cubic root of 2566264560 is about 1369.0957074267.

The spelling of 2566264560 in words is "two billion, five hundred sixty-six million, two hundred sixty-four thousand, five hundred sixty".