566261756016020 has 48 divisors (see below), whose sum is σ = 1209032709402000. Its totient is φ = 222719848888320.

The previous prime is 566261756016007. The next prime is 566261756016023. The reversal of 566261756016020 is 20610657162665.

It can be written as a sum of positive squares in 8 ways, for example, as 156409990934404 + 409851765081616 = 12506398^2 + 20244796^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566261756016023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70853045 + ... + 78439004.

It is an arithmetic number, because the mean of its divisors is an integer number (25188181445875).

Almost surely, 2^{566261756016020} is an apocalyptic number.

It is an amenable number.

566261756016020 is an abundant number, since it is smaller than the sum of its proper divisors (642770953385980).

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

566261756016020 is a wasteful number, since it uses less digits than its factorization.

566261756016020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149295228 (or 149295226 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 53.

The spelling of 566261756016020 in words is "five hundred sixty-six trillion, two hundred sixty-one billion, seven hundred fifty-six million, sixteen thousand, twenty".