18886169120 has 288 divisors, whose sum is σ = 55768632192. Its totient is φ = 5917556736.

The previous prime is 18886169087. The next prime is 18886169149. The reversal of 18886169120 is 2196168881.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21388199 + ... + 21389081.

It is an arithmetic number, because the mean of its divisors is an integer number (193641084).

Almost surely, 2^18886169120 is an apocalyptic number.

18886169120 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 18886169120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27884316096).

18886169120 is an abundant number, since it is smaller than the sum of its proper divisors (36882463072).

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

18886169120 is a wasteful number, since it uses less digits than its factorization.

18886169120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044 (or 1023 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 50.

The spelling of 18886169120 in words is "eighteen billion, eight hundred eighty-six million, one hundred sixty-nine thousand, one hundred twenty".