12111750552 has 96 divisors (see below), whose sum is σ = 33314904000. Its totient is φ = 3666632640.

The previous prime is 12111750491. The next prime is 12111750571. The reversal of 12111750552 is 25505711121.

12111750552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 23 ways as a sum of consecutive naturals, for example, 5769199 + ... + 5771297.

It is an arithmetic number, because the mean of its divisors is an integer number (347030250).

Almost surely, 2^12111750552 is an apocalyptic number.

12111750552 is a gapful number since it is divisible by the number (12) 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 12111750552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16657452000).

12111750552 is an abundant number, since it is smaller than the sum of its proper divisors (21203153448).

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

12111750552 is a wasteful number, since it uses less digits than its factorization.

12111750552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4117 (or 4102 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 30.

The spelling of 12111750552 in words is "twelve billion, one hundred eleven million, seven hundred fifty thousand, five hundred fifty-two".