16440773227320 has 256 divisors, whose sum is σ = 55581213018240. Its totient is φ = 3863287554048.

The previous prime is 16440773227261. The next prime is 16440773227391. The reversal of 16440773227320 is 2372237704461.

It is a super-3 number, since 3×16440773227320³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16440773227320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 372022 + ... + 5746298.

Almost surely, 2^{16440773227320} is an apocalyptic number.

16440773227320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16440773227320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27790606509120).

16440773227320 is an abundant number, since it is smaller than the sum of its proper divisors (39140439790920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16440773227320 is a wasteful number, since it uses less digits than its factorization.

16440773227320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5374394 (or 5374390 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 48.

The spelling of 16440773227320 in words is "sixteen trillion, four hundred forty billion, seven hundred seventy-three million, two hundred twenty-seven thousand, three hundred twenty".