116081643 has 4 divisors (see below), whose sum is σ = 154775528. Its totient is φ = 77387760.

The previous prime is 116081633. The next prime is 116081653. The reversal of 116081643 is 346180611.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (116081633) and next prime (116081653).

It is not a de Polignac number, because 116081643 - 2⁵ = 116081611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 116081643.

It is not an unprimeable number, because it can be changed into a prime (116081633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19346938 + ... + 19346943.

It is an arithmetic number, because the mean of its divisors is an integer number (38693882).

Almost surely, 2^116081643 is an apocalyptic number.

116081643 is a deficient number, since it is larger than the sum of its proper divisors (38693885).

116081643 is an equidigital number, since it uses as much as digits as its factorization.

116081643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38693884.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 116081643 is about 10774.1191287270. The cubic root of 116081643 is about 487.8142867535.

The spelling of 116081643 in words is "one hundred sixteen million, eighty-one thousand, six hundred forty-three".