116205605 has 4 divisors (see below), whose sum is σ = 139446732. Its totient is φ = 92964480.

The previous prime is 116205601. The next prime is 116205611. The reversal of 116205605 is 506502611.

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

It can be written as a sum of positive squares in 2 ways, for example, as 68194564 + 48011041 = 8258^2 + 6929^2 .

It is not a de Polignac number, because 116205605 - 2² = 116205601 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 (116205601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11620556 + ... + 11620565.

It is an arithmetic number, because the mean of its divisors is an integer number (34861683).

Almost surely, 2^116205605 is an apocalyptic number.

It is an amenable number.

116205605 is a deficient number, since it is larger than the sum of its proper divisors (23241127).

116205605 is an equidigital number, since it uses as much as digits as its factorization.

116205605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23241126.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 116205605 is about 10779.8703610016. The cubic root of 116205605 is about 487.9878683829.

The spelling of 116205605 in words is "one hundred sixteen million, two hundred five thousand, six hundred five".