115820871917440 has 32 divisors (see below), whose sum is σ = 276884271929160. Its totient is φ = 46328348766720.

The previous prime is 115820871917417. The next prime is 115820871917467. The reversal of 115820871917440 is 44719178028511.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90485055546 + ... + 90485056825.

Almost surely, 2^{115820871917440} is an apocalyptic number.

115820871917440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115820871917440 is an abundant number, since it is smaller than the sum of its proper divisors (161063400011720).

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

115820871917440 is an equidigital number, since it uses as much as digits as its factorization.

115820871917440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180970112390 (or 180970112378 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 58.

The spelling of 115820871917440 in words is "one hundred fifteen trillion, eight hundred twenty billion, eight hundred seventy-one million, nine hundred seventeen thousand, four hundred forty".