118631766 has 32 divisors (see below), whose sum is σ = 260827776. Its totient is φ = 35672000.

The previous prime is 118631759. The next prime is 118631771. The reversal of 118631766 is 667136811.

It is a congruent number.

It is an unprimeable number.

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, 1786 + ... + 15506.

It is an arithmetic number, because the mean of its divisors is an integer number (8150868).

Almost surely, 2^118631766 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118631766, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130413888).

118631766 is an abundant number, since it is smaller than the sum of its proper divisors (142196010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118631766 is a wasteful number, since it uses less digits than its factorization.

118631766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13868.

The product of its digits is 36288, while the sum is 39.

The square root of 118631766 is about 10891.8210598595. The cubic root of 118631766 is about 491.3606027470.

The spelling of 118631766 in words is "one hundred eighteen million, six hundred thirty-one thousand, seven hundred sixty-six".