What is the next number in this sequence 3 12 27 64 75 108?

The sequence appears to consist of two interleaved patterns. The first pattern (3, 27, 75) increases by adding consecutive multiples of 24, while the second pattern (12, 64, 108) increases by adding consecutive multiples of 52. Continuing this pattern, the next number after 108 in the second sequence would be 164 (adding 56). Therefore, the next number in the overall sequence is 164.