6006665 has 12 divisors (see below), whose sum is σ = 8385156. Its totient is φ = 4118688.

The previous prime is 6006643. The next prime is 6006667. The reversal of 6006665 is 5666006.

6006665 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1713481 + 4293184 = 1309^2 + 2072^2 .

It is not a de Polignac number, because 6006665 - 2⁶ = 6006601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6006667) 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 11 ways as a sum of consecutive naturals, for example, 12014 + ... + 12503.

It is an arithmetic number, because the mean of its divisors is an integer number (698763).

Almost surely, 2^6006665 is an apocalyptic number.

It is an amenable number.

6006665 is a deficient number, since it is larger than the sum of its proper divisors (2378491).

6006665 is a wasteful number, since it uses less digits than its factorization.

6006665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24536 (or 24529 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 6006665 is about 2450.8498526022. The cubic root of 6006665 is about 181.7793183223.

The spelling of 6006665 in words is "six million, six thousand, six hundred sixty-five".