115556128274880 has 168 divisors, whose sum is σ = 397573064209152. Its totient is φ = 30806584252416.

The previous prime is 115556128274819. The next prime is 115556128274893. The reversal of 115556128274880 is 88472821655511.

It is a happy number.

115556128274880 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 5 + 6 + 128 + 27 + 488 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5133729 + ... + 16045791.

Almost surely, 2^{115556128274880} is an apocalyptic number.

115556128274880 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 115556128274880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198786532104576).

115556128274880 is an abundant number, since it is smaller than the sum of its proper divisors (282016935934272).

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

115556128274880 is a wasteful number, since it uses less digits than its factorization.

115556128274880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10915763 (or 10915750 counting only the distinct ones).

The product of its (nonzero) digits is 43008000, while the sum is 63.

The spelling of 115556128274880 in words is "one hundred fifteen trillion, five hundred fifty-six billion, one hundred twenty-eight million, two hundred seventy-four thousand, eight hundred eighty".