118154835920 has 160 divisors (see below), whose sum is σ = 313083961344. Its totient is φ = 41077670400.

The previous prime is 118154835919. The next prime is 118154835937. The reversal of 118154835920 is 29538451811.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2238149 + ... + 2290331.

Almost surely, 2^118154835920 is an apocalyptic number.

118154835920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118154835920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156541980672).

118154835920 is an abundant number, since it is smaller than the sum of its proper divisors (194929125424).

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

118154835920 is a wasteful number, since it uses less digits than its factorization.

118154835920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52321 (or 52315 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 47.

The spelling of 118154835920 in words is "one hundred eighteen billion, one hundred fifty-four million, eight hundred thirty-five thousand, nine hundred twenty".