16684321347 has 12 divisors (see below), whose sum is σ = 24687370344. Its totient is φ = 10851590880.

The previous prime is 16684321327. The next prime is 16684321393. The reversal of 16684321347 is 74312348661.

16684321347 is a `hidden beast` number, since 166 + 8 + 432 + 13 + 47 = 666.

16684321347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16684321347 - 2⁷ = 16684321219 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (16684321327) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 22607113 + ... + 22607850.

It is an arithmetic number, because the mean of its divisors is an integer number (2057280862).

Almost surely, 2^16684321347 is an apocalyptic number.

16684321347 is a deficient number, since it is larger than the sum of its proper divisors (8003048997).

16684321347 is a wasteful number, since it uses less digits than its factorization.

16684321347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45215010 (or 45215007 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The spelling of 16684321347 in words is "sixteen billion, six hundred eighty-four million, three hundred twenty-one thousand, three hundred forty-seven".