116891720 has 64 divisors (see below), whose sum is σ = 289578240. Its totient is φ = 42112000.

The previous prime is 116891717. The next prime is 116891741. The reversal of 116891720 is 27198611.

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 15 ways as a sum of consecutive naturals, for example, 48545 + ... + 50895.

It is an arithmetic number, because the mean of its divisors is an integer number (4524660).

Almost surely, 2^116891720 is an apocalyptic number.

116891720 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 116891720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144789120).

116891720 is an abundant number, since it is smaller than the sum of its proper divisors (172686520).

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

116891720 is a wasteful number, since it uses less digits than its factorization.

116891720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486 (or 2482 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 35.

The square root of 116891720 is about 10811.6474230341. The cubic root of 116891720 is about 488.9463964338.

The spelling of 116891720 in words is "one hundred sixteen million, eight hundred ninety-one thousand, seven hundred twenty".