The number 163 is an integer that follows 162 and precedes 164. It is classified as a prime number, meaning it has no positive divisors other than 1 and itself. This characteristic makes it significant in number theory, where prime numbers play a crucial role in various mathematical concepts. In addition to its mathematical properties, 163 has relevance in other fields. For instance, it appears in the context of Fermat's Last Theorem, where it is associated with certain elliptic curves. The number is also used in various coding and cryptography applications, highlighting its importance beyond pure mathematics.