118155455747 has 4 divisors (see below), whose sum is σ = 135034806576. Its totient is φ = 101276104920.

The previous prime is 118155455729. The next prime is 118155455777. The reversal of 118155455747 is 747554551811.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 118155455747 - 2¹⁰ = 118155454723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118155455777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8439675404 + ... + 8439675417.

It is an arithmetic number, because the mean of its divisors is an integer number (33758701644).

Almost surely, 2^118155455747 is an apocalyptic number.

118155455747 is a deficient number, since it is larger than the sum of its proper divisors (16879350829).

118155455747 is an equidigital number, since it uses as much as digits as its factorization.

118155455747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16879350828.

The product of its digits is 3920000, while the sum is 53.

The spelling of 118155455747 in words is "one hundred eighteen billion, one hundred fifty-five million, four hundred fifty-five thousand, seven hundred forty-seven".