13166666 has 8 divisors (see below), whose sum is σ = 20028384. Its totient is φ = 6490540.

The previous prime is 13166633. The next prime is 13166669. The reversal of 13166666 is 66666131.

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

It is a super-2 number, since 2×13166666² = 346722187111112, which contains 22 as substring.

13166666 is a modest number, since divided by 6666 gives 1316 as remainder.

It is not an unprimeable number, because it can be changed into a prime (13166669) 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, 46220 + ... + 46503.

It is an arithmetic number, because the mean of its divisors is an integer number (2503548).

Almost surely, 2^13166666 is an apocalyptic number.

13166666 is a deficient number, since it is larger than the sum of its proper divisors (6861718).

13166666 is an equidigital number, since it uses as much as digits as its factorization.

13166666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92796.

The product of its digits is 23328, while the sum is 35.

The square root of 13166666 is about 3628.5900843165. The cubic root of 13166666 is about 236.1340447922.

The spelling of 13166666 in words is "thirteen million, one hundred sixty-six thousand, six hundred sixty-six".