6666444606 has 16 divisors (see below), whose sum is σ = 13520677248. Its totient is φ = 2190850200.

The previous prime is 6666444593. The next prime is 6666444613. The reversal of 6666444606 is 6064446666.

It is a congruent number.

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, 7824040 + ... + 7824891.

It is an arithmetic number, because the mean of its divisors is an integer number (845042328).

Almost surely, 2^6666444606 is an apocalyptic number.

6666444606 is an abundant number, since it is smaller than the sum of its proper divisors (6854232642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6666444606 is a wasteful number, since it uses less digits than its factorization.

6666444606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15649007.

The product of its (nonzero) digits is 2985984, while the sum is 48.

The square root of 6666444606 is about 81648.2982431355. The cubic root of 6666444606 is about 1882.0511608212.

The spelling of 6666444606 in words is "six billion, six hundred sixty-six million, four hundred forty-four thousand, six hundred six".