6671200660 has 12 divisors (see below), whose sum is σ = 14009521428. Its totient is φ = 2668480256.

The previous prime is 6671200631. The next prime is 6671200681. The reversal of 6671200660 is 660021766.

It can be written as a sum of positive squares in 2 ways, for example, as 957654916 + 5713545744 = 30946^2 + 75588^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166779997 + ... + 166780036.

It is an arithmetic number, because the mean of its divisors is an integer number (1167460119).

Almost surely, 2^6671200660 is an apocalyptic number.

It is an amenable number.

6671200660 is an abundant number, since it is smaller than the sum of its proper divisors (7338320768).

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

6671200660 is a wasteful number, since it uses less digits than its factorization.

6671200660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333560042 (or 333560040 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 6671200660 is about 81677.4182990623. The cubic root of 6671200660 is about 1882.4986261819.

The spelling of 6671200660 in words is "six billion, six hundred seventy-one million, two hundred thousand, six hundred sixty".