11903551180720 has 20 divisors (see below), whose sum is σ = 27675756495360. Its totient is φ = 4761420472256.

The previous prime is 11903551180709. The next prime is 11903551180721. The reversal of 11903551180720 is 2708115530911.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (11903551180721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74397194800 + ... + 74397194959.

It is an arithmetic number, because the mean of its divisors is an integer number (1383787824768).

Almost surely, 2^{11903551180720} is an apocalyptic number.

11903551180720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11903551180720 is an abundant number, since it is smaller than the sum of its proper divisors (15772205314640).

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

11903551180720 is a wasteful number, since it uses less digits than its factorization.

11903551180720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148794389772 (or 148794389766 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 43.

The spelling of 11903551180720 in words is "eleven trillion, nine hundred three billion, five hundred fifty-one million, one hundred eighty thousand, seven hundred twenty".