115781294160 has 320 divisors, whose sum is σ = 464376706560. Its totient is φ = 25964789760.

The previous prime is 115781294131. The next prime is 115781294197. The reversal of 115781294160 is 61492187511.

115781294160 is a `hidden beast` number, since 1 + 1 + 578 + 12 + 9 + 4 + 1 + 60 = 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 729120 + ... + 873600.

It is an arithmetic number, because the mean of its divisors is an integer number (1451177208).

Almost surely, 2^115781294160 is an apocalyptic number.

115781294160 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 115781294160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232188353280).

115781294160 is an abundant number, since it is smaller than the sum of its proper divisors (348595412400).

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

115781294160 is a wasteful number, since it uses less digits than its factorization.

115781294160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144563 (or 144551 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 45.

The spelling of 115781294160 in words is "one hundred fifteen billion, seven hundred eighty-one million, two hundred ninety-four thousand, one hundred sixty".