561166106 has 8 divisors (see below), whose sum is σ = 842807700. Its totient is φ = 280230208.

The previous prime is 561166091. The next prime is 561166129. The reversal of 561166106 is 601661165.

561166106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 494662081 + 66504025 = 22241^2 + 8155^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174431 + ... + 177618.

Almost surely, 2^561166106 is an apocalyptic number.

561166106 is a deficient number, since it is larger than the sum of its proper divisors (281641594).

561166106 is a wasteful number, since it uses less digits than its factorization.

561166106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352848.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 561166106 is about 23688.9448055417. The cubic root of 561166106 is about 824.8287889586.

It can be divided in two parts, 5611 and 66106, that added together give a palindrome (71717).

The spelling of 561166106 in words is "five hundred sixty-one million, one hundred sixty-six thousand, one hundred six".