561300857386656 has 48 divisors (see below), whose sum is σ = 1474024356028224. Its totient is φ = 187022875587584.

The previous prime is 561300857386637. The next prime is 561300857386697. The reversal of 561300857386656 is 656683758003165.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1209301260 + ... + 1209765323.

It is an arithmetic number, because the mean of its divisors is an integer number (30708840750588).

Almost surely, 2^{561300857386656} is an apocalyptic number.

It is an amenable number.

561300857386656 is an abundant number, since it is smaller than the sum of its proper divisors (912723498641568).

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

561300857386656 is a wasteful number, since it uses less digits than its factorization.

561300857386656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419069013 (or 2419069005 counting only the distinct ones).

The product of its (nonzero) digits is 653184000, while the sum is 69.

The spelling of 561300857386656 in words is "five hundred sixty-one trillion, three hundred billion, eight hundred fifty-seven million, three hundred eighty-six thousand, six hundred fifty-six".