6670066668 has 24 divisors (see below), whose sum is σ = 15573553968. Its totient is φ = 2221917696.

The previous prime is 6670066619. The next prime is 6670066681. The reversal of 6670066668 is 8666600766.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6670066668.

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, 160321 + ... + 197592.

It is an arithmetic number, because the mean of its divisors is an integer number (648898082).

Almost surely, 2^6670066668 is an apocalyptic number.

It is an amenable number.

6670066668 is an abundant number, since it is smaller than the sum of its proper divisors (8903487300).

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

6670066668 is a wasteful number, since it uses less digits than its factorization.

6670066668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359473 (or 359471 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 51.

The square root of 6670066668 is about 81670.4761097914. The cubic root of 6670066668 is about 1882.3919557608.

The spelling of 6670066668 in words is "six billion, six hundred seventy million, sixty-six thousand, six hundred sixty-eight".