6666917486 has 8 divisors (see below), whose sum is σ = 10526711880. Its totient is φ = 3158013528.

The previous prime is 6666917479. The next prime is 6666917507. The reversal of 6666917486 is 6847196666.

It is a happy number.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87722561 + ... + 87722636.

It is an arithmetic number, because the mean of its divisors is an integer number (1315838985).

Almost surely, 2^6666917486 is an apocalyptic number.

6666917486 is a deficient number, since it is larger than the sum of its proper divisors (3859794394).

6666917486 is a wasteful number, since it uses less digits than its factorization.

6666917486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175445218.

The product of its digits is 15676416, while the sum is 59.

The square root of 6666917486 is about 81651.1940267869. The cubic root of 6666917486 is about 1882.0956604690.

The spelling of 6666917486 in words is "six billion, six hundred sixty-six million, nine hundred seventeen thousand, four hundred eighty-six".