14280678666 has 12 divisors (see below), whose sum is σ = 30941470482. Its totient is φ = 4760226216.

The previous prime is 14280678653. The next prime is 14280678683. The reversal of 14280678666 is 66687608241.

14280678666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 13870008441 + 410670225 = 117771^2 + 20265^2 .

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 5 ways as a sum of consecutive naturals, for example, 396685501 + ... + 396685536.

Almost surely, 2^14280678666 is an apocalyptic number.

14280678666 is an abundant number, since it is smaller than the sum of its proper divisors (16660791816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14280678666 is a wasteful number, since it uses less digits than its factorization.

14280678666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793371045 (or 793371042 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 14280678666 in words is "fourteen billion, two hundred eighty million, six hundred seventy-eight thousand, six hundred sixty-six".