561581550200827 has 8 divisors (see below), whose sum is σ = 608839058041200. Its totient is φ = 514903889082720.

The previous prime is 561581550200819. The next prime is 561581550200873. The reversal of 561581550200827 is 728002055185165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 561581550200827 - 2³ = 561581550200819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561581550200327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144961678549 + ... + 144961682422.

It is an arithmetic number, because the mean of its divisors is an integer number (76104882255150).

Almost surely, 2^{561581550200827} is an apocalyptic number.

561581550200827 is a deficient number, since it is larger than the sum of its proper divisors (47257507840373).

561581550200827 is a wasteful number, since it uses less digits than its factorization.

561581550200827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289923361133.

The product of its (nonzero) digits is 6720000, while the sum is 55.

The spelling of 561581550200827 in words is "five hundred sixty-one trillion, five hundred eighty-one billion, five hundred fifty million, two hundred thousand, eight hundred twenty-seven".