O=C(c1ccc2c(c1)N(Cc1cccc(Cl)c1)C(=O)c1ccccc1S2(=O)=O)N1CCN(Cc2ccccc2)CC1
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. Amide C-N bonds are not counted because of their high barrier to rotation.  How many rotatable bonds does the molecule have?