16804340755812 has 192 divisors, whose sum is σ = 47375767756800. Its totient is φ = 5131479600000.

The previous prime is 16804340755801. The next prime is 16804340755841. The reversal of 16804340755812 is 21855704340861.

It is a happy number.

16804340755812 is a `hidden beast` number, since 1 + 6 + 8 + 0 + 43 + 40 + 7 + 558 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 82657687 + ... + 82860737.

It is an arithmetic number, because the mean of its divisors is an integer number (246748790400).

Almost surely, 2^{16804340755812} is an apocalyptic number.

16804340755812 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 16804340755812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23687883878400).

16804340755812 is an abundant number, since it is smaller than the sum of its proper divisors (30571427000988).

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

16804340755812 is a wasteful number, since it uses less digits than its factorization.

16804340755812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204415 (or 204407 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 16804340755812 in words is "sixteen trillion, eight hundred four billion, three hundred forty million, seven hundred fifty-five thousand, eight hundred twelve".