6646167 has 36 divisors (see below), whose sum is σ = 11203920. Its totient is φ = 3780480.

The previous prime is 6646163. The next prime is 6646193. The reversal of 6646167 is 7616466.

6646167 is a `hidden beast` number, since 6 + 646 + 1 + 6 + 7 = 666.

It is not a de Polignac number, because 6646167 - 2² = 6646163 is a prime.

6646167 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6646163) 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 35 ways as a sum of consecutive naturals, for example, 18334 + ... + 18692.

It is an arithmetic number, because the mean of its divisors is an integer number (311220).

Almost surely, 2^6646167 is an apocalyptic number.

6646167 is a deficient number, since it is larger than the sum of its proper divisors (4557753).

6646167 is a wasteful number, since it uses less digits than its factorization.

6646167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 390 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 6646167 is about 2578.0160976999. The cubic root of 6646167 is about 188.0140984598.

Subtracting 6646167 from its reverse (7616466), we obtain a cube (970299 = 99³).

The spelling of 6646167 in words is "six million, six hundred forty-six thousand, one hundred sixty-seven".