116221680 has 120 divisors (see below), whose sum is σ = 393263520. Its totient is φ = 30758400.

The previous prime is 116221669. The next prime is 116221687. The reversal of 116221680 is 86122611.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116221687) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108186 + ... + 109254.

It is an arithmetic number, because the mean of its divisors is an integer number (3277196).

Almost surely, 2^116221680 is an apocalyptic number.

116221680 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 116221680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196631760).

116221680 is an abundant number, since it is smaller than the sum of its proper divisors (277041840).

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

116221680 is a wasteful number, since it uses less digits than its factorization.

116221680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239 (or 1230 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 116221680 is about 10780.6159378766. The cubic root of 116221680 is about 488.0103688561.

The spelling of 116221680 in words is "one hundred sixteen million, two hundred twenty-one thousand, six hundred eighty".