111845941920 has 144 divisors (see below), whose sum is σ = 398268928512. Its totient is φ = 28528811520.

The previous prime is 111845941919. The next prime is 111845941957. The reversal of 111845941920 is 29149548111.

It is a happy number.

111845941920 is a `hidden beast` number, since 1 + 1 + 1 + 8 + 459 + 4 + 192 + 0 = 666.

111845941920 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

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

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 23 ways as a sum of consecutive naturals, for example, 1655376 + ... + 1721615.

It is an arithmetic number, because the mean of its divisors is an integer number (2765756448).

Almost surely, 2^111845941920 is an apocalyptic number.

111845941920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111845941920 is an abundant number, since it is smaller than the sum of its proper divisors (286422986592).

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

111845941920 is a wasteful number, since it uses less digits than its factorization.

111845941920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377035 (or 3377024 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The spelling of 111845941920 in words is "one hundred eleven billion, eight hundred forty-five million, nine hundred forty-one thousand, nine hundred twenty".