6636166 has 4 divisors (see below), whose sum is σ = 9954252. Its totient is φ = 3318082.

The previous prime is 6636127. The next prime is 6636169. The reversal of 6636166 is 6616366.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6636169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1659040 + ... + 1659043.

It is an arithmetic number, because the mean of its divisors is an integer number (2488563).

Almost surely, 2^6636166 is an apocalyptic number.

6636166 is a deficient number, since it is larger than the sum of its proper divisors (3318086).

6636166 is a wasteful number, since it uses less digits than its factorization.

6636166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3318085.

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

The square root of 6636166 is about 2576.0756976455. The cubic root of 6636166 is about 187.9197446793.

The spelling of 6636166 in words is "six million, six hundred thirty-six thousand, one hundred sixty-six".