16678796171 has 4 divisors (see below), whose sum is σ = 16752271272. Its totient is φ = 16605321072.

The previous prime is 16678796119. The next prime is 16678796179. The reversal of 16678796171 is 17169787661.

16678796171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16678796171 - 2³⁰ = 15605054347 is a prime.

It is a super-2 number, since 2×16678796171² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16678796171.

It is not an unprimeable number, because it can be changed into a prime (16678796179) 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 3 ways as a sum of consecutive naturals, for example, 36737210 + ... + 36737663.

It is an arithmetic number, because the mean of its divisors is an integer number (4188067818).

Almost surely, 2^16678796171 is an apocalyptic number.

16678796171 is a deficient number, since it is larger than the sum of its proper divisors (73475101).

16678796171 is an equidigital number, since it uses as much as digits as its factorization.

16678796171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73475100.

The product of its digits is 5334336, while the sum is 59.

The spelling of 16678796171 in words is "sixteen billion, six hundred seventy-eight million, seven hundred ninety-six thousand, one hundred seventy-one".