18065046384 has 450 divisors, whose sum is σ = 66882250512. Its totient is φ = 4690224000.

The previous prime is 18065046359. The next prime is 18065046407. The reversal of 18065046384 is 48364056081.

18065046384 is a `hidden beast` number, since 1 + 8 + 0 + 6 + 5 + 0 + 4 + 638 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 7682809 + ... + 7685159.

Almost surely, 2^18065046384 is an apocalyptic number.

18065046384 is a gapful number since it is divisible by the number (14) 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 18065046384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33441125256).

18065046384 is an abundant number, since it is smaller than the sum of its proper divisors (48817204128).

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

18065046384 is a wasteful number, since it uses less digits than its factorization.

18065046384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2407 (or 2374 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 45.

The spelling of 18065046384 in words is "eighteen billion, sixty-five million, forty-six thousand, three hundred eighty-four".