118268315728556 has 24 divisors (see below), whose sum is σ = 237737325028896. Its totient is φ = 50429129546880.

The previous prime is 118268315728523. The next prime is 118268315728559. The reversal of 118268315728556 is 655827513862811.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (118268315728559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10720472705 + ... + 10720483736.

It is an arithmetic number, because the mean of its divisors is an integer number (9905721876204).

Almost surely, 2^{118268315728556} is an apocalyptic number.

It is an amenable number.

118268315728556 is an abundant number, since it is smaller than the sum of its proper divisors (119469009300340).

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

118268315728556 is a wasteful number, since it uses less digits than its factorization.

118268315728556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21440956649 (or 21440956647 counting only the distinct ones).

The product of its digits is 193536000, while the sum is 68.

The spelling of 118268315728556 in words is "one hundred eighteen trillion, two hundred sixty-eight billion, three hundred fifteen million, seven hundred twenty-eight thousand, five hundred fifty-six".