6331666 has 16 divisors (see below), whose sum is σ = 10408320. Its totient is φ = 2864880.

The previous prime is 6331609. The next prime is 6331669. The reversal of 6331666 is 6661336.

It is not an unprimeable number, because it can be changed into a prime (6331669) 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, 5575 + ... + 6613.

It is an arithmetic number, because the mean of its divisors is an integer number (650520).

Almost surely, 2^6331666 is an apocalyptic number.

6331666 is a deficient number, since it is larger than the sum of its proper divisors (4076654).

6331666 is a wasteful number, since it uses less digits than its factorization.

6331666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329.

The product of its digits is 11664, while the sum is 31.

The square root of 6331666 is about 2516.2801910757. The cubic root of 6331666 is about 185.0003993174. Note that the first 3 decimals are identical.

The spelling of 6331666 in words is "six million, three hundred thirty-one thousand, six hundred sixty-six".