To run Adobe Media Encoder CC 2019 (16.1.2.55) portable, you'll need:
A free, professional video converter based on FFmpeg. It offers many of the advanced cropping, watermarking, and encoding features found in Media Encoder without the subscription cost.
: This is the specific build version of the 2019 release.
The search query refers to a "portable" version of Adobe Media Encoder CC 2019. The string "161255" appears to be a random identifier or a specific repack identifier, but does not correlate with standard Adobe build numbers (typically formatted as v13.x).
: You will not receive security patches or bug fixes from Adobe, leaving your system vulnerable and your features outdated. Legal & Ethical