6606700666 has 8 divisors (see below), whose sum is σ = 9914346144. Its totient is φ = 3301918620.

The previous prime is 6606700589. The next prime is 6606700669. The reversal of 6606700666 is 6660076066.

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

It is a super-3 number, since 3×6606700666³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (6606700669) 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, 710080 + ... + 719323.

It is an arithmetic number, because the mean of its divisors is an integer number (1239293268).

Almost surely, 2^6606700666 is an apocalyptic number.

6606700666 is a deficient number, since it is larger than the sum of its proper divisors (3307645478).

6606700666 is a wasteful number, since it uses less digits than its factorization.

6606700666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431716.

The product of its (nonzero) digits is 326592, while the sum is 43.

The square root of 6606700666 is about 81281.6133329057. The cubic root of 6606700666 is about 1876.4120365316.

The spelling of 6606700666 in words is "six billion, six hundred six million, seven hundred thousand, six hundred sixty-six".