566961783660 has 192 divisors, whose sum is σ = 1782106784640. Its totient is φ = 149634293760.

The previous prime is 566961783643. The next prime is 566961783671. The reversal of 566961783660 is 66387169665.

It is a happy number.

566961783660 is a `hidden beast` number, since 5 + 6 + 6 + 9 + 617 + 8 + 3 + 6 + 6 + 0 = 666.

It is a super-3 number, since 3×566961783660³ (a number of 36 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24919890 + ... + 24942630.

It is an arithmetic number, because the mean of its divisors is an integer number (9281806170).

Almost surely, 2^566961783660 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 566961783660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (891053392320).

566961783660 is an abundant number, since it is smaller than the sum of its proper divisors (1215145000980).

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

566961783660 is a wasteful number, since it uses less digits than its factorization.

566961783660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23233 (or 23225 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 63.

The spelling of 566961783660 in words is "five hundred sixty-six billion, nine hundred sixty-one million, seven hundred eighty-three thousand, six hundred sixty".