2566565412 has 48 divisors (see below), whose sum is σ = 6345682560. Its totient is φ = 804593152.

The previous prime is 2566565401. The next prime is 2566565459. The reversal of 2566565412 is 2145656652.

It is a happy number.

2566565412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323914 + ... + 331742.

It is an arithmetic number, because the mean of its divisors is an integer number (132201720).

Almost surely, 2^2566565412 is an apocalyptic number.

It is an amenable number.

2566565412 is an abundant number, since it is smaller than the sum of its proper divisors (3779117148).

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

2566565412 is a wasteful number, since it uses less digits than its factorization.

2566565412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9460 (or 9458 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The square root of 2566565412 is about 50661.2811918530. The cubic root of 2566565412 is about 1369.1492065986.

The spelling of 2566565412 in words is "two billion, five hundred sixty-six million, five hundred sixty-five thousand, four hundred twelve".