6667666814 has 8 divisors (see below), whose sum is σ = 10073453880. Its totient is φ = 3309848856.

The previous prime is 6667666799. The next prime is 6667666823. The reversal of 6667666814 is 4186667666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 6667666814.

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, 11991929 + ... + 11992484.

It is an arithmetic number, because the mean of its divisors is an integer number (1259181735).

Almost surely, 2^6667666814 is an apocalyptic number.

6667666814 is a deficient number, since it is larger than the sum of its proper divisors (3405787066).

6667666814 is a wasteful number, since it uses less digits than its factorization.

6667666814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23984554.

The product of its digits is 10450944, while the sum is 56.

The square root of 6667666814 is about 81655.7824896682. The cubic root of 6667666814 is about 1882.1661705234.

The spelling of 6667666814 in words is "six billion, six hundred sixty-seven million, six hundred sixty-six thousand, eight hundred fourteen".