118236507280 has 40 divisors (see below), whose sum is σ = 283767623424. Its totient is φ = 45768969600.

The previous prime is 118236507269. The next prime is 118236507283. The reversal of 118236507280 is 82705632811.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (118236507283) 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, 23835526 + ... + 23840485.

Almost surely, 2^118236507280 is an apocalyptic number.

118236507280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118236507280 is an abundant number, since it is smaller than the sum of its proper divisors (165531116144).

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

118236507280 is a wasteful number, since it uses less digits than its factorization.

118236507280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47676055 (or 47676049 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 118236507280 in words is "one hundred eighteen billion, two hundred thirty-six million, five hundred seven thousand, two hundred eighty".