115776261620165 has 8 divisors (see below), whose sum is σ = 140888295831168. Its totient is φ = 91316488038160.

The previous prime is 115776261620161. The next prime is 115776261620209. The reversal of 115776261620165 is 561026162677511.

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

It is not a de Polignac number, because 115776261620165 - 2² = 115776261620161 is a prime.

It is a super-3 number, since 3×115776261620165³ (a number of 43 digits) contains 333 as substring.

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 115776261620165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115776261620161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163065156857 + ... + 163065157566.

It is an arithmetic number, because the mean of its divisors is an integer number (17611036978896).

Almost surely, 2^{115776261620165} is an apocalyptic number.

It is an amenable number.

115776261620165 is a deficient number, since it is larger than the sum of its proper divisors (25112034211003).

115776261620165 is an equidigital number, since it uses as much as digits as its factorization.

115776261620165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326130314499.

The product of its (nonzero) digits is 6350400, while the sum is 56.

The spelling of 115776261620165 in words is "one hundred fifteen trillion, seven hundred seventy-six billion, two hundred sixty-one million, six hundred twenty thousand, one hundred sixty-five".