6666716195 has 4 divisors (see below), whose sum is σ = 8000059440. Its totient is φ = 5333372952.

The previous prime is 6666716179. The next prime is 6666716233. The reversal of 6666716195 is 5916176666.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5916176666 = 2 ⋅2958088333.

It is a cyclic number.

It is not a de Polignac number, because 6666716195 - 2⁴ = 6666716179 is a prime.

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, 666671615 + ... + 666671624.

It is an arithmetic number, because the mean of its divisors is an integer number (2000014860).

Almost surely, 2^6666716195 is an apocalyptic number.

6666716195 is a deficient number, since it is larger than the sum of its proper divisors (1333343245).

6666716195 is a wasteful number, since it uses less digits than its factorization.

6666716195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333343244.

The product of its digits is 2449440, while the sum is 53.

The square root of 6666716195 is about 81649.9613900705. The cubic root of 6666716195 is about 1882.0767185451.

The spelling of 6666716195 in words is "six billion, six hundred sixty-six million, seven hundred sixteen thousand, one hundred ninety-five".