566450815820 has 24 divisors (see below), whose sum is σ = 1241266136544. Its totient is φ = 216729007616.

The previous prime is 566450815813. The next prime is 566450815873. The reversal of 566450815820 is 28518054665.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 615706949 + ... + 615707868.

It is an arithmetic number, because the mean of its divisors is an integer number (51719422356).

Almost surely, 2^566450815820 is an apocalyptic number.

It is an amenable number.

566450815820 is an abundant number, since it is smaller than the sum of its proper divisors (674815320724).

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

566450815820 is a wasteful number, since it uses less digits than its factorization.

566450815820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231414849 (or 1231414847 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 50.

The spelling of 566450815820 in words is "five hundred sixty-six billion, four hundred fifty million, eight hundred fifteen thousand, eight hundred twenty".