Hungarian one hundred quintillion pengő banknote
| Country | Hungary |
|---|---|
| Value | 100 quintillion (1×1020) pengő |
| Width | 159 mm |
| Height | 79 mm |
| Weight | ≈ 1.0 g |
| Security features | optically variable ink |
| Material used | paper |
| Years of printing | June 3, 1946-July 31, 1946 |
| Obverse | |
| Design | Hungarian woman |
| Design date | 1946 |
| Reverse | |
| Design | Hungarian Parliament Building |
| Design date | 1946 |
The one hundred quintillion pengő banknote is one of the highest denomination banknotes ever circulated, issued in 1946 during Hungary's extreme post-WWII hyperinflation, a period of unprecedented economic chaos where the currency lost value incredibly fast. This massive note, sometimes called the one hundred million b.-pengő (Hungarian: százmillió b.-pengő), was part of a series symbolizing the peak of this inflation, though an even higher, unissued sextillion pengő note was also printed.