2566823334641 has 4 divisors (see below), whose sum is σ = 2567440512000. Its totient is φ = 2566206157284.

The previous prime is 2566823334629. The next prime is 2566823334683. The reversal of 2566823334641 is 1464333286652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2566823334641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2566823330641) 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, 308582441 + ... + 308590758.

It is an arithmetic number, because the mean of its divisors is an integer number (641860128000).

Almost surely, 2^{2566823334641} is an apocalyptic number.

It is an amenable number.

2566823334641 is a deficient number, since it is larger than the sum of its proper divisors (617177359).

2566823334641 is an equidigital number, since it uses as much as digits as its factorization.

2566823334641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617177358.

The product of its digits is 14929920, while the sum is 53.

The spelling of 2566823334641 in words is "two trillion, five hundred sixty-six billion, eight hundred twenty-three million, three hundred thirty-four thousand, six hundred forty-one".