188

188 = 2 x 2 x 47.

188 is the number of connected bipartite graphs with eight vertices.

188 is the largest known even number that can be expressed as the sum of two distinct primes in exactly five ways.

188 is the number of semigroups of order 4.

188³ = 6,644,672 = (6 + 64 + 46 + 72)³.

188 = 2² + 3² + 7² + 11².

188 Menippe is an asteroid discovered in 1878.

Source: Prime Curios!