566481399120 has 2400 divisors, whose sum is σ = 2689657850880. Its totient is φ = 109107855360.

The previous prime is 566481399091. The next prime is 566481399163. The reversal of 566481399120 is 21993184665.

566481399120 is a `hidden beast` number, since 5 + 6 + 6 + 481 + 39 + 9 + 120 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 2431250524 + ... + 2431250756.

Almost surely, 2^566481399120 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 566481399120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1344828925440).

566481399120 is an abundant number, since it is smaller than the sum of its proper divisors (2123176451760).

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

566481399120 is a wasteful number, since it uses less digits than its factorization.

566481399120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 566481399120 in words is "five hundred sixty-six billion, four hundred eighty-one million, three hundred ninety-nine thousand, one hundred twenty".