CCC(C)(C)C1CCC2(CC1)NC(=O)N(CC(=O)N1CCN(S(=O)(=O)c3cc(C)ccc3C)CC1)C2=O
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?