115720889856 has 480 divisors, whose sum is σ = 384953361408. Its totient is φ = 30448680960.

The previous prime is 115720889827. The next prime is 115720889857. The reversal of 115720889856 is 658988027511.

It is a self number, because there is not a number n which added to its sum of digits gives 115720889856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115720889857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63477361 + ... + 63479183.

Almost surely, 2^115720889856 is an apocalyptic number.

115720889856 is a gapful number since it is divisible by the number (16) 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 115720889856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192476680704).

115720889856 is an abundant number, since it is smaller than the sum of its proper divisors (269232471552).

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

115720889856 is a wasteful number, since it uses less digits than its factorization.

115720889856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902 (or 1869 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 60.

The spelling of 115720889856 in words is "one hundred fifteen billion, seven hundred twenty million, eight hundred eighty-nine thousand, eight hundred fifty-six".