16,016
16.003
Sixteen of them are.
Pi is infinite & digits never end. 3.14159 are amongst the first. * * * * * The answer given above is for pi. The question was about phi - which is usually used to indicate the Golden Ratio! Like pi, phi is irrational - but unlike pi, is not transcendental. Phi = [1 + sqrt(5)]/2 = 1.61803 approx.
16.08
Sixteen Digits
Sixteen.
urm..... use a calculator
45,016,000
16,300,004
Because you need symbols, that occupy only one 'place', for sixteen digits, and we only have ten common numerical digits.
All credit cards have sixteen digits. The first four are the code for the type of credit card it is.