6656606 has 8 divisors (see below), whose sum is σ = 10892664. Its totient is φ = 3025720.

The previous prime is 6656603. The next prime is 6656621. The reversal of 6656606 is 6066566.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6656603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151265 + ... + 151308.

It is an arithmetic number, because the mean of its divisors is an integer number (1361583).

Almost surely, 2^6656606 is an apocalyptic number.

6656606 is a deficient number, since it is larger than the sum of its proper divisors (4236058).

6656606 is a wasteful number, since it uses less digits than its factorization.

6656606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302586.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 6656606 is about 2580.0399221717. The cubic root of 6656606 is about 188.1124836137.

The spelling of 6656606 in words is "six million, six hundred fifty-six thousand, six hundred six".