116720186 has 32 divisors (see below), whose sum is σ = 199454400. Its totient is φ = 50740480.

The previous prime is 116720183. The next prime is 116720243. The reversal of 116720186 is 681027611.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (116720183) 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 15 ways as a sum of consecutive naturals, for example, 71285 + ... + 72903.

It is an arithmetic number, because the mean of its divisors is an integer number (6232950).

Almost surely, 2^116720186 is an apocalyptic number.

116720186 is a deficient number, since it is larger than the sum of its proper divisors (82734214).

116720186 is a wasteful number, since it uses less digits than its factorization.

116720186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 116720186 is about 10803.7116770117. The cubic root of 116720186 is about 488.7071094812.

Adding to 116720186 its reverse (681027611), we get a palindrome (797747797).

The spelling of 116720186 in words is "one hundred sixteen million, seven hundred twenty thousand, one hundred eighty-six".