6660206 has 8 divisors (see below), whose sum is σ = 11417520. Its totient is φ = 2854368.

The previous prime is 6660197. The next prime is 6660211. The reversal of 6660206 is 6020666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 237851 + ... + 237878.

It is an arithmetic number, because the mean of its divisors is an integer number (1427190).

Almost surely, 2^6660206 is an apocalyptic number.

6660206 is a deficient number, since it is larger than the sum of its proper divisors (4757314).

6660206 is a wasteful number, since it uses less digits than its factorization.

6660206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475738.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 6660206 is about 2580.7374914935. The cubic root of 6660206 is about 188.1463889251.

The spelling of 6660206 in words is "six million, six hundred sixty thousand, two hundred six".