111552011620 has 192 divisors, whose sum is σ = 276694548480. Its totient is φ = 36993235968.

The previous prime is 111552011551. The next prime is 111552011651. The reversal of 111552011620 is 26110255111.

111552011620 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 125762817 + ... + 125763703.

It is an arithmetic number, because the mean of its divisors is an integer number (1441117440).

Almost surely, 2^111552011620 is an apocalyptic number.

111552011620 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 111552011620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138347274240).

111552011620 is an abundant number, since it is smaller than the sum of its proper divisors (165142536860).

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

111552011620 is a wasteful number, since it uses less digits than its factorization.

111552011620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202 (or 1200 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 25.

Adding to 111552011620 its reverse (26110255111), we get a palindrome (137662266731).

The spelling of 111552011620 in words is "one hundred eleven billion, five hundred fifty-two million, eleven thousand, six hundred twenty".