2566123315 has 16 divisors (see below), whose sum is σ = 3521396160. Its totient is φ = 1758556800.

The previous prime is 2566123303. The next prime is 2566123331. The reversal of 2566123315 is 5133216652.

It is not a de Polignac number, because 2566123315 - 2⁷ = 2566123187 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38365 + ... + 81265.

It is an arithmetic number, because the mean of its divisors is an integer number (220087260).

Almost surely, 2^2566123315 is an apocalyptic number.

2566123315 is a deficient number, since it is larger than the sum of its proper divisors (955272845).

2566123315 is a wasteful number, since it uses less digits than its factorization.

2566123315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44622.

The product of its digits is 32400, while the sum is 34.

The square root of 2566123315 is about 50656.9177408180. The cubic root of 2566123315 is about 1369.0705890147.

Adding to 2566123315 its reverse (5133216652), we get a palindrome (7699339967).

The spelling of 2566123315 in words is "two billion, five hundred sixty-six million, one hundred twenty-three thousand, three hundred fifteen".