O=C1NC[C@H](Cc2ccccc2)N(C[C@H]2CCCN2C[C@H](Cc2ccccc2)N2C[C@H](Cc3ccc(O)cc3)N(CC3CCCCCC3)C(=O)C2=O)C1=O
How many heavy atoms like carbon, oxygen, nitrogen, sulfur and other non-hydrogen atoms do the molecule contain?