118559881440 has 2880 divisors, whose sum is σ = 610679139840. Its totient is φ = 20961607680.

The previous prime is 118559881409. The next prime is 118559881457. The reversal of 118559881440 is 44188955811.

118559881440 is a `hidden beast` number, since 1 + 1 + 8 + 5 + 598 + 8 + 1 + 4 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 3204321102 + ... + 3204321138.

It is an arithmetic number, because the mean of its divisors is an integer number (212041368).

Almost surely, 2^118559881440 is an apocalyptic number.

118559881440 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 118559881440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (305339569920).

118559881440 is an abundant number, since it is smaller than the sum of its proper divisors (492119258400).

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

118559881440 is a wasteful number, since it uses less digits than its factorization.

118559881440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 54.

It can be divided in two parts, 118559 and 881440, that added together give a palindrome (999999).

The spelling of 118559881440 in words is "one hundred eighteen billion, five hundred fifty-nine million, eight hundred eighty-one thousand, four hundred forty".