18144553692992 has 112 divisors (see below), whose sum is σ = 36540396433920. Its totient is φ = 8938048204800.

The previous prime is 18144553692977. The next prime is 18144553693027. The reversal of 18144553692992 is 29929635544181.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 6284914973 + ... + 6284917859.

Almost surely, 2^{18144553692992} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18144553692992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18270198216960).

18144553692992 is an abundant number, since it is smaller than the sum of its proper divisors (18395842740928).

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

18144553692992 is a wasteful number, since it uses less digits than its factorization.

18144553692992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5240 (or 5230 counting only the distinct ones).

The product of its digits is 167961600, while the sum is 68.

The spelling of 18144553692992 in words is "eighteen trillion, one hundred forty-four billion, five hundred fifty-three million, six hundred ninety-two thousand, nine hundred ninety-two".