118638133115 has 8 divisors (see below), whose sum is σ = 142374097008. Its totient is φ = 94904948320.

The previous prime is 118638133109. The next prime is 118638133171. The reversal of 118638133115 is 511331836811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 118638133115 - 2⁸ = 118638132859 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 599672 + ... + 772581.

It is an arithmetic number, because the mean of its divisors is an integer number (17796762126).

Almost surely, 2^118638133115 is an apocalyptic number.

118638133115 is a deficient number, since it is larger than the sum of its proper divisors (23735963893).

118638133115 is a wasteful number, since it uses less digits than its factorization.

118638133115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389549.

The product of its digits is 51840, while the sum is 41.

Adding to 118638133115 its reverse (511331836811), we get a palindrome (629969969926).

The spelling of 118638133115 in words is "one hundred eighteen billion, six hundred thirty-eight million, one hundred thirty-three thousand, one hundred fifteen".