6663165 has 16 divisors (see below), whose sum is σ = 10843200. Its totient is φ = 3492992.

The previous prime is 6663121. The next prime is 6663179. The reversal of 6663165 is 5613666.

It is a cyclic number.

It is not a de Polignac number, because 6663165 - 2¹¹ = 6661117 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2880 + ... + 4649.

It is an arithmetic number, because the mean of its divisors is an integer number (677700).

Almost surely, 2^6663165 is an apocalyptic number.

It is an amenable number.

6663165 is a deficient number, since it is larger than the sum of its proper divisors (4180035).

6663165 is a wasteful number, since it uses less digits than its factorization.

6663165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7596.

The product of its digits is 19440, while the sum is 33.

The square root of 6663165 is about 2581.3107135717. The cubic root of 6663165 is about 188.1742480602.

The spelling of 6663165 in words is "six million, six hundred sixty-three thousand, one hundred sixty-five".