116606181 has 4 divisors (see below), whose sum is σ = 155474912. Its totient is φ = 77737452.

The previous prime is 116606177. The next prime is 116606183. The reversal of 116606181 is 181606611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 181606611 = 3 ⋅60535537.

It is not a de Polignac number, because 116606181 - 2² = 116606177 is a prime.

It is a super-2 number, since 2×116606181² = 27194002894809522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116606183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19434361 + ... + 19434366.

It is an arithmetic number, because the mean of its divisors is an integer number (38868728).

Almost surely, 2^116606181 is an apocalyptic number.

It is an amenable number.

116606181 is a deficient number, since it is larger than the sum of its proper divisors (38868731).

116606181 is an equidigital number, since it uses as much as digits as its factorization.

116606181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38868730.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 116606181 is about 10798.4341920484. The cubic root of 116606181 is about 488.5479447716.

The spelling of 116606181 in words is "one hundred sixteen million, six hundred six thousand, one hundred eighty-one".