2566231623 has 6 divisors (see below), whose sum is σ = 3706779024. Its totient is φ = 1710821076.

The previous prime is 2566231589. The next prime is 2566231627. The reversal of 2566231623 is 3261326652.

2566231623 is a `hidden beast` number, since 2 + 5 + 6 + 6 + 23 + 1 + 623 = 666.

It is not a de Polignac number, because 2566231623 - 2⁶ = 2566231559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566231627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 142568415 + ... + 142568432.

It is an arithmetic number, because the mean of its divisors is an integer number (617796504).

Almost surely, 2^2566231623 is an apocalyptic number.

2566231623 is a deficient number, since it is larger than the sum of its proper divisors (1140547401).

2566231623 is a wasteful number, since it uses less digits than its factorization.

2566231623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285136853 (or 285136850 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 2566231623 is about 50657.9867641816. The cubic root of 2566231623 is about 1369.0898501326.

The spelling of 2566231623 in words is "two billion, five hundred sixty-six million, two hundred thirty-one thousand, six hundred twenty-three".