115566506000 has 80 divisors (see below), whose sum is σ = 304843488768. Its totient is φ = 42024176000.

The previous prime is 115566505991. The next prime is 115566506089. The reversal of 115566506000 is 605665511.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2604512 + ... + 2648511.

Almost surely, 2^115566506000 is an apocalyptic number.

115566506000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115566506000 is an abundant number, since it is smaller than the sum of its proper divisors (189276982768).

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

115566506000 is a wasteful number, since it uses less digits than its factorization.

115566506000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5253057 (or 5253041 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 115566506000 in words is "one hundred fifteen billion, five hundred sixty-six million, five hundred six thousand".