The number 1615646442863 is a Unix timestamp in milliseconds. It represents March 13, 2021, at 14:40:42 UTC [1].
VLC is robust and can often play partially corrupted video files or open files with incorrect extensions [3]. Check File Size: If the file size is or very small (e.g., less than ), the video failed to save properly. 4. Backup Considerations _VID-1615646442863blbon1mp4
Files with this format ( VID- followed by numbers) are very common in the WhatsApp/Media/WhatsApp Video/ folder. They are named this way to ensure uniqueness [2]. The number 1615646442863 is a Unix timestamp in milliseconds