566255129820 has 24 divisors (see below), whose sum is σ = 1585514363664. Its totient is φ = 151001367936.

The previous prime is 566255129731. The next prime is 566255129857. The reversal of 566255129820 is 28921552665.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4718792689 + ... + 4718792808.

It is an arithmetic number, because the mean of its divisors is an integer number (66063098486).

Almost surely, 2^566255129820 is an apocalyptic number.

It is an amenable number.

566255129820 is an abundant number, since it is smaller than the sum of its proper divisors (1019259233844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

566255129820 is a wasteful number, since it uses less digits than its factorization.

566255129820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9437585509 (or 9437585507 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 51.

The spelling of 566255129820 in words is "five hundred sixty-six billion, two hundred fifty-five million, one hundred twenty-nine thousand, eight hundred twenty".