3666166 has 16 divisors (see below), whose sum is σ = 6336000. Its totient is φ = 1558440.

The previous prime is 3666163. The next prime is 3666167. The reversal of 3666166 is 6616663.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835 + ... + 2833.

It is an arithmetic number, because the mean of its divisors is an integer number (396000).

Almost surely, 2^3666166 is an apocalyptic number.

3666166 is a deficient number, since it is larger than the sum of its proper divisors (2669834).

3666166 is a wasteful number, since it uses less digits than its factorization.

3666166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139.

The product of its digits is 23328, while the sum is 34.

The square root of 3666166 is about 1914.7234787300. The cubic root of 3666166 is about 154.1951481183.

The spelling of 3666166 in words is "three million, six hundred sixty-six thousand, one hundred sixty-six".