18123345108000 has 768 divisors, whose sum is σ = 76199544046080. Its totient is φ = 4135090176000.

The previous prime is 18123345107969. The next prime is 18123345108023. The reversal of 18123345108000 is 80154332181.

18123345108000 is a `hidden beast` number, since 1 + 8 + 123 + 3 + 451 + 0 + 80 + 0 + 0 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 19747314 + ... + 20644686.

It is an arithmetic number, because the mean of its divisors is an integer number (99218156310).

Almost surely, 2^{18123345108000} is an apocalyptic number.

18123345108000 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 18123345108000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38099772023040).

18123345108000 is an abundant number, since it is smaller than the sum of its proper divisors (58076198938080).

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

18123345108000 is a wasteful number, since it uses less digits than its factorization.

18123345108000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897435 (or 897411 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 18123345108000 in words is "eighteen trillion, one hundred twenty-three billion, three hundred forty-five million, one hundred eight thousand".