/usr/lib/libecal-1.2.so.16 is in libecal-1.2-16 3.10.4-0ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libecal-1.2.so.16.0.0
/usr/lib/libecal-1.2.so.16.0.0