Given the breakdown, "カリビアンコム 051316-161" likely refers to a specific piece of content published on May 16, 2013, by a service or entity named or abbreviated as "カリビアンコム." Without further context, it's challenging to provide a more detailed explanation of its significance or the nature of the content.

– Some Japanese AV distributors license Caribbeancom titles to other platforms (e.g., DMM, Fanza). Searching the code on those sites can also lead you to the same video, often with different pricing options.