563721338880 has 1224 divisors, whose sum is σ = 2349614397312. Its totient is φ = 124589703168.

The previous prime is 563721338879. The next prime is 563721338891. The reversal of 563721338880 is 88833127365.

563721338880 is a `hidden beast` number, since 563 + 72 + 1 + 3 + 3 + 8 + 8 + 8 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6791823319 + ... + 6791823401.

Almost surely, 2^563721338880 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 563721338880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1174807198656).

563721338880 is an abundant number, since it is smaller than the sum of its proper divisors (1785893058432).

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

563721338880 is an equidigital number, since it uses as much as digits as its factorization.

563721338880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 563721338880 in words is "five hundred sixty-three billion, seven hundred twenty-one million, three hundred thirty-eight thousand, eight hundred eighty".