18144738613320 has 128 divisors (see below), whose sum is σ = 61964641059840. Its totient is φ = 4207475613440.

The previous prime is 18144738613289. The next prime is 18144738613349. The reversal of 18144738613320 is 2331683744181.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 298796034 + ... + 298856753.

It is an arithmetic number, because the mean of its divisors is an integer number (484098758280).

Almost surely, 2^{18144738613320} is an apocalyptic number.

18144738613320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18144738613320 is an abundant number, since it is smaller than the sum of its proper divisors (43819902446520).

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

18144738613320 is a wasteful number, since it uses less digits than its factorization.

18144738613320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597652835 (or 597652831 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 18144738613320 in words is "eighteen trillion, one hundred forty-four billion, seven hundred thirty-eight million, six hundred thirteen thousand, three hundred twenty".