| genus c | 81, orientable |
| Schläfli formula c | {20,180} |
| V / F / E c | 2 / 18 / 180 |
| notes | |
| vertex, face multiplicity c | 180, 10 |
| 20, each with 18 edges | |
| rotational symmetry group | 360 elements. |
| full symmetry group | 720 elements. |
| its presentation c | < r, s, t | t2, (rs)2, (rt)2, (st)2, sr3sr‑1, s‑1r15s‑2rs‑1, s‑2r‑1s8r‑1s‑8 > |
| C&D number c | R81.146 |
| The statistics marked c are from the published work of Professor Marston Conder. | |
Its Petrie dual is
List of regular maps in orientable genus 81.
| Orientable | |
| Non-orientable |