5606666 has 16 divisors (see below), whose sum is σ = 9106944. Its totient is φ = 2573424.

The previous prime is 5606621. The next prime is 5606681. The reversal of 5606666 is 6666065.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

5606666 is a modest number, since divided by 6666 gives 560 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5315 + ... + 6281.

It is an arithmetic number, because the mean of its divisors is an integer number (569184).

Almost surely, 2^5606666 is an apocalyptic number.

5606666 is a deficient number, since it is larger than the sum of its proper divisors (3500278).

5606666 is a wasteful number, since it uses less digits than its factorization.

5606666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205.

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

The square root of 5606666 is about 2367.8399439151. The cubic root of 5606666 is about 177.6512339336.

The spelling of 5606666 in words is "five million, six hundred six thousand, six hundred sixty-six".