The number 16640 is the last five digits of the full version number for Skyrim Special Edition executable (SkyrimSE.exe). After Bethesda released the "Anniversary Edition" update in November 2021, the game’s version jumped from 1.5.97 to 1.6.xx. The specific build 1.6.640.0.8 is commonly referred to as 16640 in modding shorthand.
Thus, when someone searches for "SKSE 16640 link," they actually need the SKSE version compatible with game version 1.6.640. skse 16640 link
Official SKSE Website: https://skse.silverlock.org/ SKSE-dependent mods report missing functions:
On that page, look for the heading “Current SE build 1.6.640” and the file: Mod manager not launching SKSE:
Important: Do not download SKSE from third-party mod sites (e.g., Nexus Mods mirror) unless linked from silverlock.org. Only silverlock hosts the official, up-to-date builds.
Copy all files into your Skyrim Special Edition folder (where SkyrimSE.exe is located), not into Data.
