115947016805 has 8 divisors (see below), whose sum is σ = 139138279800. Its totient is φ = 92756373696.

The previous prime is 115947016799. The next prime is 115947016807. The reversal of 115947016805 is 508610749511.

It can be written as a sum of positive squares in 4 ways, for example, as 12904732801 + 103042284004 = 113599^2 + 321002^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115947016805 - 2²⁴ = 115930239589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115947016805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115947016807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539291 + ... + 722999.

It is an arithmetic number, because the mean of its divisors is an integer number (17392284975).

Almost surely, 2^115947016805 is an apocalyptic number.

It is an amenable number.

115947016805 is a deficient number, since it is larger than the sum of its proper divisors (23191262995).

115947016805 is a wasteful number, since it uses less digits than its factorization.

115947016805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309943.

The product of its (nonzero) digits is 302400, while the sum is 47.

The spelling of 115947016805 in words is "one hundred fifteen billion, nine hundred forty-seven million, sixteen thousand, eight hundred five".