116565706505 has 48 divisors (see below), whose sum is σ = 152441208576. Its totient is φ = 85510010880.

The previous prime is 116565706493. The next prime is 116565706513. The reversal of 116565706505 is 505607565611.

It is not a de Polignac number, because 116565706505 - 2⁴ = 116565706489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 116565706505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15412925 + ... + 15420485.

It is an arithmetic number, because the mean of its divisors is an integer number (3175858512).

Almost surely, 2^116565706505 is an apocalyptic number.

It is an amenable number.

116565706505 is a deficient number, since it is larger than the sum of its proper divisors (35875502071).

116565706505 is a wasteful number, since it uses less digits than its factorization.

116565706505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7874 (or 7857 counting only the distinct ones).

The product of its (nonzero) digits is 945000, while the sum is 47.

The spelling of 116565706505 in words is "one hundred sixteen billion, five hundred sixty-five million, seven hundred six thousand, five hundred five".