115865277777766 has 8 divisors (see below), whose sum is σ = 189597727272744. Its totient is φ = 52666035353520.

The previous prime is 115865277777749. The next prime is 115865277777773. The reversal of 115865277777766 is 667777772568511.

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

It is a self number, because there is not a number n which added to its sum of digits gives 115865277777766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2633301767655 + ... + 2633301767698.

It is an arithmetic number, because the mean of its divisors is an integer number (23699715909093).

Almost surely, 2^{115865277777766} is an apocalyptic number.

115865277777766 is a deficient number, since it is larger than the sum of its proper divisors (73732449494978).

115865277777766 is a wasteful number, since it uses less digits than its factorization.

115865277777766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5266603535366.

The product of its digits is 10164873600, while the sum is 82.

The spelling of 115865277777766 in words is "one hundred fifteen trillion, eight hundred sixty-five billion, two hundred seventy-seven million, seven hundred seventy-seven thousand, seven hundred sixty-six".