16666727884 has 12 divisors (see below), whose sum is σ = 29439361224. Its totient is φ = 8255481824.

The previous prime is 16666727849. The next prime is 16666727897. The reversal of 16666727884 is 48872766661.

It is a happy number.

16666727884 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 19470049 + ... + 19470904.

It is an arithmetic number, because the mean of its divisors is an integer number (2453280102).

Almost surely, 2^16666727884 is an apocalyptic number.

It is an amenable number.

16666727884 is a deficient number, since it is larger than the sum of its proper divisors (12772633340).

16666727884 is a wasteful number, since it uses less digits than its factorization.

16666727884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38941064 (or 38941062 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 61.

The spelling of 16666727884 in words is "sixteen billion, six hundred sixty-six million, seven hundred twenty-seven thousand, eight hundred eighty-four".