6668571670 has 8 divisors (see below), whose sum is σ = 12003429024. Its totient is φ = 2667428664.

The previous prime is 6668571659. The next prime is 6668571673. The reversal of 6668571670 is 761758666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6668571673) 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, 333428574 + ... + 333428593.

It is an arithmetic number, because the mean of its divisors is an integer number (1500428628).

Almost surely, 2^6668571670 is an apocalyptic number.

6668571670 is a deficient number, since it is larger than the sum of its proper divisors (5334857354).

6668571670 is a wasteful number, since it uses less digits than its factorization.

6668571670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666857174.

The product of its (nonzero) digits is 2540160, while the sum is 52.

The square root of 6668571670 is about 81661.3229748331. The cubic root of 6668571670 is about 1882.2513083667.

The spelling of 6668571670 in words is "six billion, six hundred sixty-eight million, five hundred seventy-one thousand, six hundred seventy".