16684351667 has 8 divisors (see below), whose sum is σ = 17667275472. Its totient is φ = 15701593600.

The previous prime is 16684351661. The next prime is 16684351681. The reversal of 16684351667 is 76615348661.

16684351667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 16684351667 - 2¹⁰ = 16684350643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16684351661) 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 7 ways as a sum of consecutive naturals, for example, 209192 + ... + 277722.

It is an arithmetic number, because the mean of its divisors is an integer number (2208409434).

Almost surely, 2^16684351667 is an apocalyptic number.

16684351667 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

16684351667 is a deficient number, since it is larger than the sum of its proper divisors (982923805).

16684351667 is a wasteful number, since it uses less digits than its factorization.

16684351667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82869.

The product of its digits is 4354560, while the sum is 53.

The spelling of 16684351667 in words is "sixteen billion, six hundred eighty-four million, three hundred fifty-one thousand, six hundred sixty-seven".