118581869391552 has 2016 divisors, whose sum is σ = 458856095443200. Its totient is φ = 30191146868736.

The previous prime is 118581869391541. The next prime is 118581869391563. The reversal of 118581869391552 is 255193968185811.

118581869391552 is a `hidden beast` number, since 1 + 1 + 8 + 5 + 8 + 1 + 8 + 69 + 3 + 9 + 1 + 552 = 666.

118581869391552 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (118581869391541) and next prime (118581869391563).

It is a tau number, because it is divible by the number of its divisors (2016).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 71134893823 + ... + 71134895489.

It is an arithmetic number, because the mean of its divisors is an integer number (227607190200).

Almost surely, 2^{118581869391552} is an apocalyptic number.

118581869391552 is a gapful number since it is divisible by the number (12) 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 118581869391552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229428047721600).

118581869391552 is an abundant number, since it is smaller than the sum of its proper divisors (340274226051648).

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

118581869391552 is an equidigital number, since it uses as much as digits as its factorization.

118581869391552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1778 (or 1715 counting only the distinct ones).

The product of its digits is 186624000, while the sum is 72.

The spelling of 118581869391552 in words is "one hundred eighteen trillion, five hundred eighty-one billion, eight hundred sixty-nine million, three hundred ninety-one thousand, five hundred fifty-two".