116801820 has 144 divisors (see below), whose sum is σ = 375036480. Its totient is φ = 29365248.

The previous prime is 116801807. The next prime is 116801851. The reversal of 116801820 is 28108611.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 368302 + ... + 368618.

It is an arithmetic number, because the mean of its divisors is an integer number (2604420).

Almost surely, 2^116801820 is an apocalyptic number.

116801820 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 116801820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187518240).

116801820 is an abundant number, since it is smaller than the sum of its proper divisors (258234660).

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

116801820 is a wasteful number, since it uses less digits than its factorization.

116801820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 27.

The square root of 116801820 is about 10807.4890700847. The cubic root of 116801820 is about 488.8210167103.

The spelling of 116801820 in words is "one hundred sixteen million, eight hundred one thousand, eight hundred twenty".