561000606018 has 16 divisors (see below), whose sum is σ = 1135519299936. Its totient is φ = 184747187360.

The previous prime is 561000606013. The next prime is 561000606073. The reversal of 561000606018 is 810606000165.

It is a self number, because there is not a number n which added to its sum of digits gives 561000606018.

It is not an unprimeable number, because it can be changed into a prime (561000606011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563253123 + ... + 563254118.

It is an arithmetic number, because the mean of its divisors is an integer number (70969956246).

Almost surely, 2^561000606018 is an apocalyptic number.

561000606018 is an abundant number, since it is smaller than the sum of its proper divisors (574518693918).

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

561000606018 is a wasteful number, since it uses less digits than its factorization.

561000606018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126507329.

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 561000606018 in words is "five hundred sixty-one billion, six hundred six thousand, eighteen".