2566433868 has 48 divisors (see below), whose sum is σ = 6158575584. Its totient is φ = 831324160.

The previous prime is 2566433843. The next prime is 2566433869. The reversal of 2566433868 is 8683346652.

It is a self number, because there is not a number n which added to its sum of digits gives 2566433868.

It is not an unprimeable number, because it can be changed into a prime (2566433869) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116296 + ... + 136592.

It is an arithmetic number, because the mean of its divisors is an integer number (128303658).

Almost surely, 2^2566433868 is an apocalyptic number.

It is an amenable number.

2566433868 is an abundant number, since it is smaller than the sum of its proper divisors (3592141716).

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

2566433868 is a wasteful number, since it uses less digits than its factorization.

2566433868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20602 (or 20600 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 51.

The square root of 2566433868 is about 50659.9829056426. The cubic root of 2566433868 is about 1369.1258152290.

The spelling of 2566433868 in words is "two billion, five hundred sixty-six million, four hundred thirty-three thousand, eight hundred sixty-eight".