561650760 has 448 divisors, whose sum is σ = 2209783680. Its totient is φ = 126904320.

The previous prime is 561650753. The next prime is 561650797. The reversal of 561650760 is 67056165.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 5452869 + ... + 5452971.

Almost surely, 2^561650760 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 561650760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1104891840).

561650760 is an abundant number, since it is smaller than the sum of its proper divisors (1648132920).

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

561650760 is a wasteful number, since it uses less digits than its factorization.

561650760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 561650760 is about 23699.1721374397. The cubic root of 561650760 is about 825.0661765098.

The spelling of 561650760 in words is "five hundred sixty-one million, six hundred fifty thousand, seven hundred sixty".