6670407666 has 32 divisors (see below), whose sum is σ = 14431495680. Its totient is φ = 2043224064.

The previous prime is 6670407607. The next prime is 6670407677. The reversal of 6670407666 is 6667040766.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174351 + ... + 209138.

It is an arithmetic number, because the mean of its divisors is an integer number (450984240).

Almost surely, 2^6670407666 is an apocalyptic number.

6670407666 is an abundant number, since it is smaller than the sum of its proper divisors (7761088014).

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

6670407666 is a wasteful number, since it uses less digits than its factorization.

6670407666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383730.

The product of its (nonzero) digits is 1524096, while the sum is 48.

The square root of 6670407666 is about 81672.5637285864. The cubic root of 6670407666 is about 1882.4240334489.

The spelling of 6670407666 in words is "six billion, six hundred seventy million, four hundred seven thousand, six hundred sixty-six".