561322060655556 has 12 divisors (see below), whose sum is σ = 1309751474862992. Its totient is φ = 187107353551848.

The previous prime is 561322060655519. The next prime is 561322060655581. The reversal of 561322060655556 is 655556060223165.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 561322060655496 and 561322060655505.

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, 23388419193970 + ... + 23388419193993.

Almost surely, 2^{561322060655556} is an apocalyptic number.

It is an amenable number.

561322060655556 is an abundant number, since it is smaller than the sum of its proper divisors (748429414207436).

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

561322060655556 is a wasteful number, since it uses less digits than its factorization.

561322060655556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46776838387970 (or 46776838387968 counting only the distinct ones).

The product of its (nonzero) digits is 48600000, while the sum is 57.

The spelling of 561322060655556 in words is "five hundred sixty-one trillion, three hundred twenty-two billion, sixty million, six hundred fifty-five thousand, five hundred fifty-six".