561035120435244 has 144 divisors (see below), whose sum is σ = 1749180166126848. Its totient is φ = 147648463887744.

The previous prime is 561035120435219. The next prime is 561035120435249. The reversal of 561035120435244 is 442534021530165.

561035120435244 is a `hidden beast` number, since 5 + 6 + 1 + 0 + 3 + 51 + 204 + 352 + 44 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 561035120435244.

It is not an unprimeable number, because it can be changed into a prime (561035120435249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 181827862 + ... + 184887645.

It is an arithmetic number, because the mean of its divisors is an integer number (12147084486992).

Almost surely, 2^{561035120435244} is an apocalyptic number.

It is an amenable number.

561035120435244 is an abundant number, since it is smaller than the sum of its proper divisors (1188145045691604).

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

561035120435244 is a wasteful number, since it uses less digits than its factorization.

561035120435244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366716004 (or 366715999 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 45.

The spelling of 561035120435244 in words is "five hundred sixty-one trillion, thirty-five billion, one hundred twenty million, four hundred thirty-five thousand, two hundred forty-four".