hello people. I am taking a statistics course and tried to work out a way to calculate the p-value

I want to know if I'm on the right track

in the course, the teacher says that the p-value is approximately zero

in my calculation in R it says the result is 1.247316e-61

a <- 100

s <- 6.5

n <- 35

xbar <- 118.2

z <- (xbar-a)/(s/sqrt(n))

z

[1] 16.56502

2*pnorm(-abs(z))

[1] 1.247316e-61

- My question What does 1.247316e-61 mean?
- Did my other question do the right thing in R to solve the problem?

for more information see attached image

.Obsevation- I am a virgin novice, I know.