115669812709 has 16 divisors (see below), whose sum is σ = 128076318720. Its totient is φ = 103589470960.

The previous prime is 115669812707. The next prime is 115669812719. The reversal of 115669812709 is 907218966511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 115669812709 - 2¹ = 115669812707 is a prime.

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 115669812709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115669812707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63829 + ... + 485194.

It is an arithmetic number, because the mean of its divisors is an integer number (8004769920).

Almost surely, 2^115669812709 is an apocalyptic number.

It is an amenable number.

115669812709 is a deficient number, since it is larger than the sum of its proper divisors (12406506011).

115669812709 is a wasteful number, since it uses less digits than its factorization.

115669812709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549320.

The product of its (nonzero) digits is 1632960, while the sum is 55.

The spelling of 115669812709 in words is "one hundred fifteen billion, six hundred sixty-nine million, eight hundred twelve thousand, seven hundred nine".