561250666632 has 128 divisors (see below), whose sum is σ = 1535927581440. Its totient is φ = 170184499200.

The previous prime is 561250666601. The next prime is 561250666679. The reversal of 561250666632 is 236666052165.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2156388 + ... + 2402604.

It is an arithmetic number, because the mean of its divisors is an integer number (11999434230).

Almost surely, 2^561250666632 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 561250666632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (767963790720).

561250666632 is an abundant number, since it is smaller than the sum of its proper divisors (974676914808).

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

561250666632 is a wasteful number, since it uses less digits than its factorization.

561250666632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246431 (or 246427 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 48.

The spelling of 561250666632 in words is "five hundred sixty-one billion, two hundred fifty million, six hundred sixty-six thousand, six hundred thirty-two".