115440163723517 has 4 divisors (see below), whose sum is σ = 115441009321596. Its totient is φ = 115439318125440.

The previous prime is 115440163723501. The next prime is 115440163723523. The reversal of 115440163723517 is 715327361044511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16355141134201 + 99085022589316 = 4044149^2 + 9954146^2 .

It is a cyclic number.

It is not a de Polignac number, because 115440163723517 - 2⁴ = 115440163723501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115440163723597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422594228 + ... + 422867309.

It is an arithmetic number, because the mean of its divisors is an integer number (28860252330399).

Almost surely, 2^{115440163723517} is an apocalyptic number.

It is an amenable number.

115440163723517 is a deficient number, since it is larger than the sum of its proper divisors (845598079).

115440163723517 is an equidigital number, since it uses as much as digits as its factorization.

115440163723517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845598078.

The product of its (nonzero) digits is 2116800, while the sum is 50.

The spelling of 115440163723517 in words is "one hundred fifteen trillion, four hundred forty billion, one hundred sixty-three million, seven hundred twenty-three thousand, five hundred seventeen".