115541840880 has 800 divisors, whose sum is σ = 442831656960. Its totient is φ = 27814440960.

The previous prime is 115541840873. The next prime is 115541840917. The reversal of 115541840880 is 88048145511.

115541840880 is a `hidden beast` number, since 1 + 1 + 554 + 18 + 4 + 0 + 8 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 237251997 + ... + 237252483.

Almost surely, 2^115541840880 is an apocalyptic number.

115541840880 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 115541840880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221415828480).

115541840880 is an abundant number, since it is smaller than the sum of its proper divisors (327289816080).

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

115541840880 is a wasteful number, since it uses less digits than its factorization.

115541840880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 45.

The spelling of 115541840880 in words is "one hundred fifteen billion, five hundred forty-one million, eight hundred forty thousand, eight hundred eighty".