6663065 has 16 divisors (see below), whose sum is σ = 8667648. Its totient is φ = 4897536.

The previous prime is 6663043. The next prime is 6663067. The reversal of 6663065 is 5603666.

It is a cyclic number.

It is not a de Polignac number, because 6663065 - 2⁸ = 6662809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6663067) 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 15 ways as a sum of consecutive naturals, for example, 2744 + ... + 4566.

It is an arithmetic number, because the mean of its divisors is an integer number (541728).

Almost surely, 2^6663065 is an apocalyptic number.

It is an amenable number.

6663065 is a deficient number, since it is larger than the sum of its proper divisors (2004583).

6663065 is a wasteful number, since it uses less digits than its factorization.

6663065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 6663065 is about 2581.2913434946. The cubic root of 6663065 is about 188.1733066898.

The spelling of 6663065 in words is "six million, six hundred sixty-three thousand, sixty-five".