13561166 has 8 divisors (see below), whose sum is σ = 20891640. Its totient is φ = 6597288.

The previous prime is 13561157. The next prime is 13561199. The reversal of 13561166 is 66116531.

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

It is a congruent 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, 91556 + ... + 91703.

It is an arithmetic number, because the mean of its divisors is an integer number (2611455).

Almost surely, 2^13561166 is an apocalyptic number.

13561166 is a deficient number, since it is larger than the sum of its proper divisors (7330474).

13561166 is a wasteful number, since it uses less digits than its factorization.

13561166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183298.

The product of its digits is 3240, while the sum is 29.

The square root of 13561166 is about 3682.5488455688. The cubic root of 13561166 is about 238.4692270581.

Adding to 13561166 its reverse (66116531), we get a palindrome (79677697).

The spelling of 13561166 in words is "thirteen million, five hundred sixty-one thousand, one hundred sixty-six".