115705012500 has 1296 divisors, whose sum is σ = 494030130048. Its totient is φ = 22161600000.

The previous prime is 115705012487. The next prime is 115705012517. The reversal of 115705012500 is 5210507511.

115705012500 is a `hidden beast` number, since 1 + 157 + 0 + 5 + 0 + 1 + 2 + 500 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 431 ways as a sum of consecutive naturals, for example, 3127162482 + ... + 3127162518.

It is an arithmetic number, because the mean of its divisors is an integer number (381196088).

Almost surely, 2^115705012500 is an apocalyptic number.

115705012500 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 115705012500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247015065024).

115705012500 is an abundant number, since it is smaller than the sum of its proper divisors (378325117548).

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

115705012500 is a wasteful number, since it uses less digits than its factorization.

115705012500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 27.

The spelling of 115705012500 in words is "one hundred fifteen billion, seven hundred five million, twelve thousand, five hundred".