561106110556 has 48 divisors (see below), whose sum is σ = 1001687450400. Its totient is φ = 274954521600.

The previous prime is 561106110553. The next prime is 561106110601. The reversal of 561106110556 is 655011601165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561106110553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96722856 + ... + 96728656.

It is an arithmetic number, because the mean of its divisors is an integer number (20868488550).

Almost surely, 2^561106110556 is an apocalyptic number.

It is an amenable number.

561106110556 is a deficient number, since it is larger than the sum of its proper divisors (440581339844).

561106110556 is a wasteful number, since it uses less digits than its factorization.

561106110556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7654 (or 7652 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 37.

The spelling of 561106110556 in words is "five hundred sixty-one billion, one hundred six million, one hundred ten thousand, five hundred fifty-six".