18816795194112 has 432 divisors, whose sum is σ = 58269739862880. Its totient is φ = 5819056128000.

The previous prime is 18816795194083. The next prime is 18816795194159. The reversal of 18816795194112 is 21149159761881.

18816795194112 is a `hidden beast` number, since 1 + 8 + 8 + 1 + 6 + 79 + 519 + 41 + 1 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 18816795194112.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 905906287 + ... + 905927057.

It is an arithmetic number, because the mean of its divisors is an integer number (134883657090).

Almost surely, 2^{18816795194112} is an apocalyptic number.

18816795194112 is a gapful number since it is divisible by the number (12) 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 18816795194112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29134869931440).

18816795194112 is an abundant number, since it is smaller than the sum of its proper divisors (39452944668768).

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

18816795194112 is a wasteful number, since it uses less digits than its factorization.

18816795194112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21140 (or 21123 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 63.

The spelling of 18816795194112 in words is "eighteen trillion, eight hundred sixteen billion, seven hundred ninety-five million, one hundred ninety-four thousand, one hundred twelve".