By the numbers: Apple's ludicrous fourth quarter

Note: All numbers refer to the quarter ending Dec. 27, unless otherwise noted.

$179 billion: Apple's cash-on-hand.

$131.4 billion: The total cost of the Apollo program, adjusted for inflation.

$74.6 billion: Apple's revenue.

$72.9 billion: The combined revenues of Microsoft, IBM, and Procter & Gamble in the same period.

$60.1 billion: Luxembourg's GDP in 2013.

$18 billion: Apple's profit. This is the most profit ever reported by a publicly-traded company.

$6.2 billion: The purchase price of a Nimitz-class aircraft carrier.

1 billion: iOS devices sold by Apple since the introduction of the iPhone.

500 million: Visitors to Apple's brick-and-mortar and online stores.

474 million: Tourist arrivals to France, the U.S., Spain, China, Italy, Turkey, Germany, the U.K., Russia, and Thailand in 2013.

74.5 million: iPhones sold by Apple in the quarter.

25 million: Apple TVs sold since its release.

21.4 million: iPads sold by Apple in the quarter.

20 million: Copies of the game Skyrim sold since 2011.

5.5 million: Macs sold by Apple in the quarter.

$761,000: Apple's revenue per employee.

$575,000: Apple's revenue per minute.

$184,000: Apple's net profit per employee.

$144,000: Average salary for an Apple software engineer, according to Glassdoor.

$687: The average selling price of the iPhone.

575: The number of iPhones Apple sold every minute of every day.

$45: The average selling price of phones from Microsoft's handset unit last quarter.