116595981 has 6 divisors (see below), whose sum is σ = 168416430. Its totient is φ = 77730648.

The previous prime is 116595971. The next prime is 116596031. The reversal of 116595981 is 189595611.

116595981 is a `hidden beast` number, since 1 + 1 + 6 + 59 + 598 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 112148100 + 4447881 = 10590^2 + 2109^2 .

It is not a de Polignac number, because 116595981 - 2¹⁰ = 116594957 is a prime.

It is a super-2 number, since 2×116595981² = 27189245570704722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116595931) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6477546 + ... + 6477563.

It is an arithmetic number, because the mean of its divisors is an integer number (28069405).

Almost surely, 2^116595981 is an apocalyptic number.

It is an amenable number.

116595981 is a deficient number, since it is larger than the sum of its proper divisors (51820449).

116595981 is a wasteful number, since it uses less digits than its factorization.

116595981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12955115 (or 12955112 counting only the distinct ones).

The product of its digits is 97200, while the sum is 45.

The square root of 116595981 is about 10797.9618910237. The cubic root of 116595981 is about 488.5336992879.

The spelling of 116595981 in words is "one hundred sixteen million, five hundred ninety-five thousand, nine hundred eighty-one".