111055560 has 384 divisors, whose sum is σ = 452096640. Its totient is φ = 21504000.

The previous prime is 111055559. The next prime is 111055583. The reversal of 111055560 is 65550111.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 111055560.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1099510 + ... + 1099610.

It is an arithmetic number, because the mean of its divisors is an integer number (1177335).

Almost surely, 2^111055560 is an apocalyptic number.

111055560 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 111055560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226048320).

111055560 is an abundant number, since it is smaller than the sum of its proper divisors (341041080).

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

111055560 is a wasteful number, since it uses less digits than its factorization.

111055560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 24.

The square root of 111055560 is about 10538.2901838961. The cubic root of 111055560 is about 480.6697248473.

The spelling of 111055560 in words is "one hundred eleven million, fifty-five thousand, five hundred sixty".