Unless you cheat it is currently impossible, the games limit iirc is ~1.797e308, the highest i have currently is in the beyond which is 3e118 stardust (and thats with my best producer having lvl 5 in both common upgrades, lvl 3 rare, and lvl 3 in both epic upgrades that effect production, i also have gotten all constellations)

I have another question; is it possible to get more than a duodecillion currency in an exploration? The highest I got was around there, and no exploration lasted long enough or had the right upgrades to go any higher.

In pollination, yes. I’ve gotton up to Tdc and I’m sure qdc is possible with enough time fluxes.