2566864983359 has 4 divisors (see below), whose sum is σ = 2567592350160. Its totient is φ = 2566137616560.

The previous prime is 2566864983343. The next prime is 2566864983367. The reversal of 2566864983359 is 9533894686652.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2566864983359 - 2⁴ = 2566864983343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566864982359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363678107 + ... + 363685164.

It is an arithmetic number, because the mean of its divisors is an integer number (641898087540).

Almost surely, 2^{2566864983359} is an apocalyptic number.

2566864983359 is a deficient number, since it is larger than the sum of its proper divisors (727366801).

2566864983359 is an equidigital number, since it uses as much as digits as its factorization.

2566864983359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727366800.

The product of its digits is 2015539200, while the sum is 74.

The spelling of 2566864983359 in words is "two trillion, five hundred sixty-six billion, eight hundred sixty-four million, nine hundred eighty-three thousand, three hundred fifty-nine".