18108554108344 has 64 divisors (see below), whose sum is σ = 41421663705600. Its totient is φ = 7248791088000.

The previous prime is 18108554108341. The next prime is 18108554108347. The reversal of 18108554108344 is 44380145580181.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18108554108341) and next prime (18108554108347).

It is a junction number, because it is equal to n+sod(n) for n = 18108554108291 and 18108554108300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18108554108341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119778807 + ... + 119929894.

It is an arithmetic number, because the mean of its divisors is an integer number (647213495400).

Almost surely, 2^{18108554108344} is an apocalyptic number.

18108554108344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18108554108344 is an abundant number, since it is smaller than the sum of its proper divisors (23313109597256).

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

18108554108344 is a wasteful number, since it uses less digits than its factorization.

18108554108344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239708804 (or 239708800 counting only the distinct ones).

The product of its (nonzero) digits is 2457600, while the sum is 52.

The spelling of 18108554108344 in words is "eighteen trillion, one hundred eight billion, five hundred fifty-four million, one hundred eight thousand, three hundred forty-four".