6665006 has 4 divisors (see below), whose sum is σ = 9997512. Its totient is φ = 3332502.

The previous prime is 6664997. The next prime is 6665011. The reversal of 6665006 is 6005666.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6005666 = 2 ⋅3002833.

It is a self number, because there is not a number n which added to its sum of digits gives 6665006.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1666250 + ... + 1666253.

It is an arithmetic number, because the mean of its divisors is an integer number (2499378).

Almost surely, 2^6665006 is an apocalyptic number.

6665006 is a deficient number, since it is larger than the sum of its proper divisors (3332506).

6665006 is a wasteful number, since it uses less digits than its factorization.

6665006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3332505.

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

The square root of 6665006 is about 2581.6672907251. The cubic root of 6665006 is about 188.1915770068.

The spelling of 6665006 in words is "six million, six hundred sixty-five thousand, six".