The number 67 is classified as a prime number, meaning it is greater than 1 and has no positive divisors other than 1 and itself. This makes it unique among numbers, as it cannot be formed by multiplying two smaller natural numbers. In the sequence of natural numbers, 67 follows 66 and precedes 68. It is the 19th prime number in the list of primes, which starts with 2, 3, 5, and continues onward. The number 67 is also used in various fields, including mathematics and computer science, for its properties and applications.