561255645007684 has 12 divisors (see below), whose sum is σ = 1071488049560208. Its totient is φ = 255116202276200.

The previous prime is 561255645007667. The next prime is 561255645007691. The reversal of 561255645007684 is 486700546552165.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6377905056862 + ... + 6377905056949.

It is an arithmetic number, because the mean of its divisors is an integer number (89290670796684).

Almost surely, 2^{561255645007684} is an apocalyptic number.

It is an amenable number.

561255645007684 is a deficient number, since it is larger than the sum of its proper divisors (510232404552524).

561255645007684 is a wasteful number, since it uses less digits than its factorization.

561255645007684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12755810113826 (or 12755810113824 counting only the distinct ones).

The product of its (nonzero) digits is 241920000, while the sum is 64.

The spelling of 561255645007684 in words is "five hundred sixty-one trillion, two hundred fifty-five billion, six hundred forty-five million, seven thousand, six hundred eighty-four".