118381516771 has 8 divisors (see below), whose sum is σ = 135300466784. Its totient is φ = 101464392960.

The previous prime is 118381516769. The next prime is 118381516789. The reversal of 118381516771 is 177615183811.

It is a happy number.

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

It is not a de Polignac number, because 118381516771 - 2¹ = 118381516769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118381516471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314700 + ... + 579481.

It is an arithmetic number, because the mean of its divisors is an integer number (16912558348).

Almost surely, 2^118381516771 is an apocalyptic number.

118381516771 is a deficient number, since it is larger than the sum of its proper divisors (16918950013).

118381516771 is an equidigital number, since it uses as much as digits as its factorization.

118381516771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913101.

The product of its digits is 282240, while the sum is 49.

The spelling of 118381516771 in words is "one hundred eighteen billion, three hundred eighty-one million, five hundred sixteen thousand, seven hundred seventy-one".