6604166666 has 16 divisors (see below), whose sum is σ = 9988913088. Its totient is φ = 3274564800.

The previous prime is 6604166651. The next prime is 6604166683. The reversal of 6604166666 is 6666614066.

It is a self number, because there is not a number n which added to its sum of digits gives 6604166666.

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, 398771 + ... + 415001.

It is an arithmetic number, because the mean of its divisors is an integer number (624307068).

Almost surely, 2^6604166666 is an apocalyptic number.

6604166666 is a deficient number, since it is larger than the sum of its proper divisors (3384746422).

6604166666 is a wasteful number, since it uses less digits than its factorization.

6604166666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17917.

The product of its (nonzero) digits is 1119744, while the sum is 47.

The square root of 6604166666 is about 81266.0240567976. The cubic root of 6604166666 is about 1876.1721065789.

The spelling of 6604166666 in words is "six billion, six hundred four million, one hundred sixty-six thousand, six hundred sixty-six".