118081505040 has 320 divisors, whose sum is σ = 387607334400. Its totient is φ = 29678026752.

The previous prime is 118081505039. The next prime is 118081505057. The reversal of 118081505040 is 40505180811.

It is a junction number, because it is equal to n+sod(n) for n = 118081504992 and 118081505010.

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 63 ways as a sum of consecutive naturals, for example, 137784292 + ... + 137785148.

It is an arithmetic number, because the mean of its divisors is an integer number (1211272920).

Almost surely, 2^118081505040 is an apocalyptic number.

118081505040 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 118081505040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193803667200).

118081505040 is an abundant number, since it is smaller than the sum of its proper divisors (269525829360).

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

118081505040 is a wasteful number, since it uses less digits than its factorization.

118081505040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 33.

Adding to 118081505040 its reverse (40505180811), we get a palindrome (158586685851).

The spelling of 118081505040 in words is "one hundred eighteen billion, eighty-one million, five hundred five thousand, forty".