6666718118 has 8 divisors (see below), whose sum is σ = 10076414040. Its totient is φ = 3307913440.

The previous prime is 6666718103. The next prime is 6666718129. The reversal of 6666718118 is 8118176666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12722483 + ... + 12723006.

It is an arithmetic number, because the mean of its divisors is an integer number (1259551755).

Almost surely, 2^6666718118 is an apocalyptic number.

6666718118 is a deficient number, since it is larger than the sum of its proper divisors (3409695922).

6666718118 is a wasteful number, since it uses less digits than its factorization.

6666718118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25445622.

The product of its digits is 580608, while the sum is 50.

The square root of 6666718118 is about 81649.9731659478. The cubic root of 6666718118 is about 1882.0768995054.

The spelling of 6666718118 in words is "six billion, six hundred sixty-six million, seven hundred eighteen thousand, one hundred eighteen".