Android 1718 is one of the few EX fusions of a male and a female with the other being Great Saiyaman 12. It is also notable that it's currently the only fusion that is the result of two twin siblings of the opposite gender fusing.
As 17 and 18 are components of Cell, it is possible that Imperfect Cell would be able to achieve his Perfect form if he were to absorb Android 1718, as they are a fusion of 17 and 18.
In Dragon Ball Super, Android 35 is introduced as a hypothetical Potara Fusion of 17 and 18 as they were considered to be compatible due to being twins and could fuse into Android 35 during the Tournament of Power. However it was later realized that fusion was too risky as both fusee would be eliminated if their fusion was eliminated from the tournament which would be a double loss for Team Universe 7 if Android 35 were eliminated thus Android 35 remains purely hypothetical. Interestingly had they fused during the tournament, this would be the second fusion of theirs to as the result of a tournament as Android 1718 came about in the Timespace Rift which was created by Shenron to fulfill Tekka and Pinich's wish for the Timespace Tournament to determine the strongest in time and space.