Which statement is not correct about fullerene C60​?

C60​ (fullerene) looks like a soccer ball and contains 20 six membered rings and 12 five membered rings of carbon atoms. All carbon atoms are equal & they undergo sp2 hybridisation. Each carbon atom form a 3 sigma bond with the other 3 carbon atoms.Six membered rings are fused with both six membered as well as five membered rings while five membered rings are attached only with six membered rings.