2566106317 has 4 divisors (see below), whose sum is σ = 2575575616. Its totient is φ = 2556637020.

The previous prime is 2566106303. The next prime is 2566106321. The reversal of 2566106317 is 7136016652.

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 not a de Polignac number, because 2566106317 - 2²³ = 2557717709 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 (2566106377) 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, 4734243 + ... + 4734784.

It is an arithmetic number, because the mean of its divisors is an integer number (643893904).

Almost surely, 2^2566106317 is an apocalyptic number.

It is an amenable number.

2566106317 is a deficient number, since it is larger than the sum of its proper divisors (9469299).

2566106317 is an equidigital number, since it uses as much as digits as its factorization.

2566106317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9469298.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 2566106317 is about 50656.7499648369. The cubic root of 2566106317 is about 1369.0675661003.

The spelling of 2566106317 in words is "two billion, five hundred sixty-six million, one hundred six thousand, three hundred seventeen".