1803170022912 has 240 divisors, whose sum is σ = 5340507091920. Its totient is φ = 585462398976.

The previous prime is 1803170022893. The next prime is 1803170022967. The reversal of 1803170022912 is 2192200713081.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33920578 + ... + 33973694.

It is an arithmetic number, because the mean of its divisors is an integer number (22252112883).

Almost surely, 2^{1803170022912} is an apocalyptic number.

1803170022912 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 1803170022912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2670253545960).

1803170022912 is an abundant number, since it is smaller than the sum of its proper divisors (3537337069008).

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

1803170022912 is a wasteful number, since it uses less digits than its factorization.

1803170022912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53333 (or 53314 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

Adding to 1803170022912 its reverse (2192200713081), we get a palindrome (3995370735993).

The spelling of 1803170022912 in words is "one trillion, eight hundred three billion, one hundred seventy million, twenty-two thousand, nine hundred twelve".