561116810 has 16 divisors (see below), whose sum is σ = 1010728800. Its totient is φ = 224287056.

The previous prime is 561116789. The next prime is 561116867. The reversal of 561116810 is 18611165.

561116810 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×561116810² = 629704148929152200, which contains 22 as substring.

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, 4640 + ... + 33819.

It is an arithmetic number, because the mean of its divisors is an integer number (63170550).

Almost surely, 2^561116810 is an apocalyptic number.

561116810 is a deficient number, since it is larger than the sum of its proper divisors (449611990).

561116810 is a wasteful number, since it uses less digits than its factorization.

561116810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39925.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 561116810 is about 23687.9042973413. The cubic root of 561116810 is about 824.8046357116.

Adding to 561116810 its reverse (18611165), we get a palindrome (579727975).

The spelling of 561116810 in words is "five hundred sixty-one million, one hundred sixteen thousand, eight hundred ten".