18336119439456 has 288 divisors, whose sum is σ = 64744361398080. Its totient is φ = 4793103286272.

The previous prime is 18336119439437. The next prime is 18336119439487. The reversal of 18336119439456 is 65493491163381.

18336119439456 is a `hidden beast` number, since 1 + 8 + 3 + 3 + 6 + 1 + 194 + 394 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 18336119439393 and 18336119439402.

It is a congruent number.

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, 134241 + ... + 6057248.

It is an arithmetic number, because the mean of its divisors is an integer number (224806810410).

Almost surely, 2^{18336119439456} is an apocalyptic number.

18336119439456 is a gapful number since it is divisible by the number (16) 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 18336119439456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32372180699040).

18336119439456 is an abundant number, since it is smaller than the sum of its proper divisors (46408241958624).

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

18336119439456 is a wasteful number, since it uses less digits than its factorization.

18336119439456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6191638 (or 6191627 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 63.

The spelling of 18336119439456 in words is "eighteen trillion, three hundred thirty-six billion, one hundred nineteen million, four hundred thirty-nine thousand, four hundred fifty-six".