2566045888 has 28 divisors (see below), whose sum is σ = 5819426512. Its totient is φ = 1099733760.

The previous prime is 2566045871. The next prime is 2566045903. The reversal of 2566045888 is 8885406652.

It is a tau number, because it is divible by the number of its divisors (28).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2863443 + ... + 2864338.

Almost surely, 2^2566045888 is an apocalyptic number.

2566045888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2566045888 is an abundant number, since it is smaller than the sum of its proper divisors (3253380624).

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

2566045888 is an equidigital number, since it uses as much as digits as its factorization.

2566045888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5727800 (or 5727790 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 52.

The square root of 2566045888 is about 50656.1535057687. The cubic root of 2566045888 is about 1369.0568193342.

The spelling of 2566045888 in words is "two billion, five hundred sixty-six million, forty-five thousand, eight hundred eighty-eight".