6666956 has 24 divisors (see below), whose sum is σ = 12123216. Its totient is φ = 3205440.

The previous prime is 6666949. The next prime is 6666977. The reversal of 6666956 is 6596666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15626 + ... + 16046.

It is an arithmetic number, because the mean of its divisors is an integer number (505134).

Almost surely, 2^6666956 is an apocalyptic number.

It is an amenable number.

6666956 is a deficient number, since it is larger than the sum of its proper divisors (5456260).

6666956 is a wasteful number, since it uses less digits than its factorization.

6666956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569 (or 567 counting only the distinct ones).

The product of its digits is 349920, while the sum is 44.

The square root of 6666956 is about 2582.0449260228. The cubic root of 6666956 is about 188.2099284677.

The spelling of 6666956 in words is "six million, six hundred sixty-six thousand, nine hundred fifty-six".