COc1ccc(CNC(=O)C[C@H]2C[C@H](C(=O)N3CCCCC3)[C@@]3(CCc4ccccc4)c4[nH]c5ccc(Cl)cc5c4CCN3C2=O)cc1OC
Heavy atom refers to any atom that is not hydrogen. The heavy atoms in molecules are carbon, oxygen, nitrogen, and sulfur. How many heavy atoms are in the molecule?