1808170116 has 72 divisors (see below), whose sum is σ = 4676911680. Its totient is φ = 542581248.

The previous prime is 1808170087. The next prime is 1808170121. The reversal of 1808170116 is 6110718081.

1808170116 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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, 68430 + ... + 91098.

Almost surely, 2^1808170116 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 1808170116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2338455840).

1808170116 is an abundant number, since it is smaller than the sum of its proper divisors (2868741564).

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

1808170116 is a wasteful number, since it uses less digits than its factorization.

1808170116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22733 (or 22714 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 33.

The square root of 1808170116 is about 42522.5835997767. The cubic root of 1808170116 is about 1218.2780769363.

Adding to 1808170116 its reverse (6110718081), we get a palindrome (7918888197).

The spelling of 1808170116 in words is "one billion, eight hundred eight million, one hundred seventy thousand, one hundred sixteen".