5566642672320 has 1344 divisors, whose sum is σ = 21907063526400. Its totient is φ = 1288918794240.

The previous prime is 5566642672247. The next prime is 5566642672363. The reversal of 5566642672320 is 232762466655.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5878186087 + ... + 5878187033.

Almost surely, 2^{5566642672320} 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 5566642672320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10953531763200).

5566642672320 is an abundant number, since it is smaller than the sum of its proper divisors (16340420854080).

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

5566642672320 is a wasteful number, since it uses less digits than its factorization.

5566642672320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166 (or 1153 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 54.

The spelling of 5566642672320 in words is "five trillion, five hundred sixty-six billion, six hundred forty-two million, six hundred seventy-two thousand, three hundred twenty".