Could anybody please point me in the right direction with this inverse laplace transform?

L-1 {(e^(-0.165s)) / ((1+0.63s)s)

i think its a heaviside function

so H(t-a)= H(t-0.165)

which leaves me with

1 / ((1+0.63s)s)

and this where i'm stuck (No doubt the solution is staring me in the face!)