116680581 has 12 divisors (see below), whose sum is σ = 174781152. Its totient is φ = 77786892.

The previous prime is 116680579. The next prime is 116680591. The reversal of 116680581 is 185086611.

116680581 is a `hidden beast` number, since 1 + 16 + 68 + 0 + 581 = 666.

It is not a de Polignac number, because 116680581 - 2¹ = 116680579 is a prime.

It is a super-2 number, since 2×116680581² = 27228715964995122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116680561) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 239841 + ... + 240326.

It is an arithmetic number, because the mean of its divisors is an integer number (14565096).

Almost surely, 2^116680581 is an apocalyptic number.

It is an amenable number.

116680581 is a deficient number, since it is larger than the sum of its proper divisors (58100571).

116680581 is an frugal number, since it uses more digits than its factorization.

116680581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480182 (or 480170 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 116680581 is about 10801.8785866163. The cubic root of 116680581 is about 488.6518278847.

The spelling of 116680581 in words is "one hundred sixteen million, six hundred eighty thousand, five hundred eighty-one".