13662166 has 8 divisors (see below), whose sum is σ = 23420880. Its totient is φ = 5855208.

The previous prime is 13662163. The next prime is 13662167. The reversal of 13662166 is 66126631.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13662163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487921 + ... + 487948.

It is an arithmetic number, because the mean of its divisors is an integer number (2927610).

Almost surely, 2^13662166 is an apocalyptic number.

13662166 is a deficient number, since it is larger than the sum of its proper divisors (9758714).

13662166 is an equidigital number, since it uses as much as digits as its factorization.

13662166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975878.

The product of its digits is 7776, while the sum is 31.

The square root of 13662166 is about 3696.2367348426. The cubic root of 13662166 is about 239.0597820842.

Adding to 13662166 its reverse (66126631), we get a palindrome (79788797).

The spelling of 13662166 in words is "thirteen million, six hundred sixty-two thousand, one hundred sixty-six".