563221435560 has 256 divisors, whose sum is σ = 2092187750400. Its totient is φ = 118345715712.

The previous prime is 563221435549. The next prime is 563221435583. The reversal of 563221435560 is 65534122365.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 155421 + ... + 1072659.

It is an arithmetic number, because the mean of its divisors is an integer number (8172608400).

Almost surely, 2^563221435560 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 563221435560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1046093875200).

563221435560 is an abundant number, since it is smaller than the sum of its proper divisors (1528966314840).

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

563221435560 is a wasteful number, since it uses less digits than its factorization.

563221435560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917320 (or 917316 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 563221435560 in words is "five hundred sixty-three billion, two hundred twenty-one million, four hundred thirty-five thousand, five hundred sixty".