1806805548800 has 216 divisors, whose sum is σ = 5249141179296. Its totient is φ = 602733035520.

The previous prime is 1806805548721. The next prime is 1806805548817. The reversal of 1806805548800 is 88455086081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1112594 + ... + 2202606.

Almost surely, 2^{1806805548800} is an apocalyptic number.

1806805548800 is a gapful number since it is divisible by the number (10) 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 1806805548800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2624570589648).

1806805548800 is an abundant number, since it is smaller than the sum of its proper divisors (3442335630496).

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

1806805548800 is a wasteful number, since it uses less digits than its factorization.

1806805548800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090083 (or 1090064 counting only the distinct ones).

The product of its (nonzero) digits is 2457600, while the sum is 53.

The spelling of 1806805548800 in words is "one trillion, eight hundred six billion, eight hundred five million, five hundred forty-eight thousand, eight hundred".