561066105590 has 16 divisors (see below), whose sum is σ = 1027036262160. Its totient is φ = 220622604000.

The previous prime is 561066105557. The next prime is 561066105629. The reversal of 561066105590 is 95501660165.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475479161 + ... + 475480340.

It is an arithmetic number, because the mean of its divisors is an integer number (64189766385).

Almost surely, 2^561066105590 is an apocalyptic number.

561066105590 is a deficient number, since it is larger than the sum of its proper divisors (465970156570).

561066105590 is a wasteful number, since it uses less digits than its factorization.

561066105590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950959567.

The product of its (nonzero) digits is 243000, while the sum is 44.

The spelling of 561066105590 in words is "five hundred sixty-one billion, sixty-six million, one hundred five thousand, five hundred ninety".