18559941120 has 240 divisors, whose sum is σ = 73461548160. Its totient is φ = 4242235392.

The previous prime is 18559941089. The next prime is 18559941143. The reversal of 18559941120 is 2114995581.

18559941120 is a `hidden beast` number, since 1 + 8 + 5 + 599 + 41 + 12 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103741 + ... + 218819.

It is an arithmetic number, because the mean of its divisors is an integer number (306089784).

Almost surely, 2^18559941120 is an apocalyptic number.

18559941120 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 18559941120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36730774080).

18559941120 is an abundant number, since it is smaller than the sum of its proper divisors (54901607040).

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

18559941120 is a wasteful number, since it uses less digits than its factorization.

18559941120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115115 (or 115096 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 45.

The spelling of 18559941120 in words is "eighteen billion, five hundred fifty-nine million, nine hundred forty-one thousand, one hundred twenty".