2566716368 has 20 divisors (see below), whose sum is σ = 4975077408. Its totient is φ = 1282825440.

The previous prime is 2566716367. The next prime is 2566716371. The reversal of 2566716368 is 8636176652.

It is a super-2 number, since 2×2566716368² = 13176065827518222848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566716367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8003 + ... + 72093.

Almost surely, 2^2566716368 is an apocalyptic number.

It is an amenable number.

2566716368 is a deficient number, since it is larger than the sum of its proper divisors (2408361040).

2566716368 is a wasteful number, since it uses less digits than its factorization.

2566716368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66602 (or 66596 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 50.

The square root of 2566716368 is about 50662.7710256753. The cubic root of 2566716368 is about 1369.1760488570.

The spelling of 2566716368 in words is "two billion, five hundred sixty-six million, seven hundred sixteen thousand, three hundred sixty-eight".