561322060655559 has 32 divisors (see below), whose sum is σ = 859665739161600. Its totient is φ = 319136347807200.

The previous prime is 561322060655519. The next prime is 561322060655581. The reversal of 561322060655559 is 955556060223165.

It is not a de Polignac number, because 561322060655559 - 2⁸ = 561322060655303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561322060655519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 184418374 + ... + 187437404.

It is an arithmetic number, because the mean of its divisors is an integer number (26864554348800).

Almost surely, 2^{561322060655559} is an apocalyptic number.

561322060655559 is a deficient number, since it is larger than the sum of its proper divisors (298343678506041).

561322060655559 is a wasteful number, since it uses less digits than its factorization.

561322060655559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063731.

The product of its (nonzero) digits is 72900000, while the sum is 60.

The spelling of 561322060655559 in words is "five hundred sixty-one trillion, three hundred twenty-two billion, sixty million, six hundred fifty-five thousand, five hundred fifty-nine".