6656911 has 8 divisors (see below), whose sum is σ = 7169040. Its totient is φ = 6158208.

The previous prime is 6656899. The next prime is 6656917. The reversal of 6656911 is 1196566.

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

It is a cyclic number.

It is not a de Polignac number, because 6656911 - 2⁵ = 6656879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6656917) by changing a digit.

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, 2316 + ... + 4321.

It is an arithmetic number, because the mean of its divisors is an integer number (896130).

Almost surely, 2^6656911 is an apocalyptic number.

6656911 is a deficient number, since it is larger than the sum of its proper divisors (512129).

6656911 is a wasteful number, since it uses less digits than its factorization.

6656911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6713.

The product of its digits is 9720, while the sum is 34.

The square root of 6656911 is about 2580.0990291072. The cubic root of 6656911 is about 188.1153566209.

The spelling of 6656911 in words is "six million, six hundred fifty-six thousand, nine hundred eleven".