18273116160 has 896 divisors, whose sum is σ = 73983006720. Its totient is φ = 4246732800.

The previous prime is 18273116063. The next prime is 18273116227. The reversal of 18273116160 is 6161137281.

18273116160 is a `hidden beast` number, since 1 + 8 + 2 + 7 + 31 + 1 + 616 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 445685740 + ... + 445685780.

It is an arithmetic number, because the mean of its divisors is an integer number (82570320).

Almost surely, 2^18273116160 is an apocalyptic number.

18273116160 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 18273116160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36991503360).

18273116160 is an abundant number, since it is smaller than the sum of its proper divisors (55709890560).

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

18273116160 is a wasteful number, since it uses less digits than its factorization.

18273116160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

It can be divided in two parts, 182731 and 16160, that added together give a palindrome (198891).

The spelling of 18273116160 in words is "eighteen billion, two hundred seventy-three million, one hundred sixteen thousand, one hundred sixty".