Difference between int, Int16, Int32 and Int64

int

1. It is a primitive data type defined in C#.
2. It is mapped to Int32 of FCL type.
3. It is a value type and represent System.Int32 struct.
4. It is signed and takes 32 bits.
5. It has minimum -2147483648 and maximum +2147483647 capacity.

Int16

1. It is a FCL type.
2. In C#, short is mapped to Int16.
3. It is a value type and represent System.Int16 struct.
4. It is signed and takes 16 bits.
5. It has minimum -32768 and maximum +32767 capacity.

Int32

1. It is a FCL type.
2. In C#, int is mapped to Int32.
3. It is a value type and represent System.Int32 struct.
4. It is signed and takes 32 bits.
5. It has minimum -2147483648 and maximum +2147483647 capacity.

Int64

1. It is a FCL type.
2. In C#, long is mapped to Int64.
3. It is a value type and represent System.Int64 struct.
4. It is signed and takes 64 bits.
5. It has minimum –9,223,372,036,854,775,808 and maximum 9,223,372,036,854,775,807 capacity.