118638133116 has 12 divisors (see below), whose sum is σ = 276822310632. Its totient is φ = 39546044368.

The previous prime is 118638133109. The next prime is 118638133171. The reversal of 118638133116 is 611331836811.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4943255535 + ... + 4943255558.

It is an arithmetic number, because the mean of its divisors is an integer number (23068525886).

Almost surely, 2^118638133116 is an apocalyptic number.

It is an amenable number.

118638133116 is an abundant number, since it is smaller than the sum of its proper divisors (158184177516).

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

118638133116 is a wasteful number, since it uses less digits than its factorization.

118638133116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9886511100 (or 9886511098 counting only the distinct ones).

The product of its digits is 62208, while the sum is 42.

Adding to 118638133116 its reverse (611331836811), we get a palindrome (729969969927).

The spelling of 118638133116 in words is "one hundred eighteen billion, six hundred thirty-eight million, one hundred thirty-three thousand, one hundred sixteen".