6650109 has 12 divisors (see below), whose sum is σ = 9629152. Its totient is φ = 4422600.

The previous prime is 6650099. The next prime is 6650131. The reversal of 6650109 is 9010566.

6650109 is a `hidden beast` number, since 6 + 650 + 1 + 0 + 9 = 666.

It is not a de Polignac number, because 6650109 - 2⁴ = 6650093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6650909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5094 + ... + 6264.

Almost surely, 2^6650109 is an apocalyptic number.

It is an amenable number.

6650109 is a deficient number, since it is larger than the sum of its proper divisors (2979043).

6650109 is a wasteful number, since it uses less digits than its factorization.

6650109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808 (or 1805 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 6650109 is about 2578.7805257524. The cubic root of 6650109 is about 188.0512629936.

The spelling of 6650109 in words is "six million, six hundred fifty thousand, one hundred nine".