2566522272257 has 8 divisors (see below), whose sum is σ = 2622310656000. Its totient is φ = 2511248067504.

The previous prime is 2566522272233. The next prime is 2566522272269. The reversal of 2566522272257 is 7522722256652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2566522272257 - 2¹⁰ = 2566522271233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2566522272199 and 2566522272208.

It is not an unprimeable number, because it can be changed into a prime (2566522272227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128534657 + ... + 128554622.

It is an arithmetic number, because the mean of its divisors is an integer number (327788832000).

Almost surely, 2^{2566522272257} is an apocalyptic number.

It is an amenable number.

2566522272257 is a deficient number, since it is larger than the sum of its proper divisors (55788383743).

2566522272257 is a wasteful number, since it uses less digits than its factorization.

2566522272257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257089495.

The product of its digits is 14112000, while the sum is 53.

The spelling of 2566522272257 in words is "two trillion, five hundred sixty-six billion, five hundred twenty-two million, two hundred seventy-two thousand, two hundred fifty-seven".