11 groups of order 1660.
| SmallGroups | group |
|---|---|
| (1660, 1) | Dic5×C83 #13110308 |
| (1660, 2) | C5×Dic83 #13110309 |
| (1660, 3) | Dic415 #13110310 |
| (1660, 4) | C4×C5×C83 #13110311 |
| (1660, 5) | AGL(1,𝔽5)×C83 #13110312 |
| (1660, 6) | C83⋊AGL(1,𝔽5) #13110313 |
| (1660, 7) | D5×D83 #13110314 |
| (1660, 8) | C2×C5×D83 #13110315 |
| (1660, 9) | C2×D5×C83 #13110316 |
| (1660, 10) | C2×D415 #13110317 |
| (1660, 11) | C22×C5×C83 #13110318 |