We prove multiplicative congruences mod \(2^{12}\) for George Andrews’s partition function, \(\overline{\mathcal{E}\mathcal{O}}(n)\) , the number of partitions of n in which every even part is less than each odd part and only the largest even part occurs an odd number of times. We find analogous congruences for more general infinite products. These congruences, inspired by Atkin’s multiplicative congruences for the partition function, are obtained using Fricke involutions and Newman’s approach to half integer weight Hecke operators on eta quotients.
