11944222741920 has 384 divisors, whose sum is σ = 45744388042752. Its totient is φ = 2557333094400.

The previous prime is 11944222741849. The next prime is 11944222741943. The reversal of 11944222741920 is 2914722244911.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 11944222741920.

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, 11556805 + ... + 12547835.

It is an arithmetic number, because the mean of its divisors is an integer number (119126010528).

Almost surely, 2^{11944222741920} is an apocalyptic number.

11944222741920 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 11944222741920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22872194021376).

11944222741920 is an abundant number, since it is smaller than the sum of its proper divisors (33800165300832).

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

11944222741920 is a wasteful number, since it uses less digits than its factorization.

11944222741920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991284 (or 991276 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 11944222741920 in words is "eleven trillion, nine hundred forty-four billion, two hundred twenty-two million, seven hundred forty-one thousand, nine hundred twenty".