18349920066996 has 192 divisors, whose sum is σ = 57237359872000. Its totient is φ = 4966406161920.

The previous prime is 18349920066953. The next prime is 18349920067067. The reversal of 18349920066996 is 69966002994381.

18349920066996 is a `hidden beast` number, since 18 + 349 + 9 + 200 + 6 + 69 + 9 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 159828300 + ... + 159943068.

Almost surely, 2^{18349920066996} 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 18349920066996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28618679936000).

18349920066996 is an abundant number, since it is smaller than the sum of its proper divisors (38887439805004).

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

18349920066996 is a wasteful number, since it uses less digits than its factorization.

18349920066996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125939 (or 125931 counting only the distinct ones).

The product of its (nonzero) digits is 272097792, while the sum is 72.

The spelling of 18349920066996 in words is "eighteen trillion, three hundred forty-nine billion, nine hundred twenty million, sixty-six thousand, nine hundred ninety-six".