116566013 has 4 divisors (see below), whose sum is σ = 116593788. Its totient is φ = 116538240.

The previous prime is 116565989. The next prime is 116566031. The reversal of 116566013 is 310665611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310665611 = 953 ⋅325987.

It can be written as a sum of positive squares in 2 ways, for example, as 98942809 + 17623204 = 9947^2 + 4198^2 .

It is a cyclic number.

It is not a de Polignac number, because 116566013 - 2¹² = 116561917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116566213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6158 + ... + 16463.

It is an arithmetic number, because the mean of its divisors is an integer number (29148447).

Almost surely, 2^116566013 is an apocalyptic number.

It is an amenable number.

116566013 is a deficient number, since it is larger than the sum of its proper divisors (27775).

116566013 is an equidigital number, since it uses as much as digits as its factorization.

116566013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27774.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 116566013 is about 10796.5741325663. The cubic root of 116566013 is about 488.4918406913.

The spelling of 116566013 in words is "one hundred sixteen million, five hundred sixty-six thousand, thirteen".