11999880000 has 560 divisors, whose sum is σ = 45324491520. Its totient is φ = 3110400000.

The previous prime is 11999879939. The next prime is 11999880031. The reversal of 11999880000 is 8899911.

11999880000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 44279865 + ... + 44280135.

It is an arithmetic number, because the mean of its divisors is an integer number (80936592).

Almost surely, 2^11999880000 is an apocalyptic number.

11999880000 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 11999880000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22662245760).

11999880000 is an abundant number, since it is smaller than the sum of its proper divisors (33324611520).

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

11999880000 is an equidigital number, since it uses as much as digits as its factorization.

11999880000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 45.

The spelling of 11999880000 in words is "eleven billion, nine hundred ninety-nine million, eight hundred eighty thousand".