$ apt-cache rdepends libsnappy1
libsnappy1
Reverse Depends:
  python3-tables-lib
  python3-tables-dbg
  python-tables-lib
  python-tables-dbg
  python-snappy
  mongodb-server
  mongodb-clients
  libsnappy1.0.3-java
  libshogun16
  libmtbl0
  juju-mongodb
  apitrace-gl-frontend
  libsnappy-dev
  libleveldb1
phablet@ubuntu-phablet:~$ apt-cache depends libsnappy1
libsnappy1
  Depends: libc6
  Depends: libgcc1
  Depends: libstdc++6