The following table shows the sizes and ranges of the integral types, which constitute a subset of simple types.
| Type | Range | Size | 
|---|---|---|
| -128 to 127 | Signed 8-bit integer | |
| 0 to 255 | Unsigned 8-bit integer | |
| U+0000 to U+ffff | Unicode 16-bit character | |
| -32,768 to 32,767 | Signed 16-bit integer | |
| 0 to 65,535 | Unsigned 16-bit integer | |
| -2,147,483,648 to 2,147,483,647 | Signed 32-bit integer | |
| 0 to 4,294,967,295 | Unsigned 32-bit integer | |
| -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 | Signed 64-bit integer | |
| 0 to 18,446,744,073,709,551,615 | Unsigned 64-bit integer | 
If the value represented by an integer literal exceeds the range of ulong, a compilation error will occur.
See Also
Reference
Built-In Types Table (C# Reference)
Concepts
Other Resources
Floating-Point Types Table (C# Reference)
Default Values Table (C# Reference)