566605578220 has 192 divisors, whose sum is σ = 1370515894272. Its totient is φ = 194754560000.

The previous prime is 566605578037. The next prime is 566605578221. The reversal of 566605578220 is 22875506665.

It is not an unprimeable number, because it can be changed into a prime (566605578221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 465575052 + ... + 465576268.

It is an arithmetic number, because the mean of its divisors is an integer number (7138103616).

Almost surely, 2^566605578220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 566605578220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (685257947136).

566605578220 is an abundant number, since it is smaller than the sum of its proper divisors (803910316052).

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

566605578220 is a wasteful number, since it uses less digits than its factorization.

566605578220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272 (or 2270 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 52.

The spelling of 566605578220 in words is "five hundred sixty-six billion, six hundred five million, five hundred seventy-eight thousand, two hundred twenty".