115667772365 has 8 divisors (see below), whose sum is σ = 140029657848. Its totient is φ = 91715330560.

The previous prime is 115667772359. The next prime is 115667772371. The reversal of 115667772365 is 563277766511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (115667772359) and next prime (115667772371).

It can be written as a sum of positive squares in 4 ways, for example, as 10573803241 + 105093969124 = 102829^2 + 324182^2 .

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

It is not a de Polignac number, because 115667772365 - 2¹⁶ = 115667706829 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 115667772365.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102360296 + ... + 102361425.

It is an arithmetic number, because the mean of its divisors is an integer number (17503707231).

Almost surely, 2^115667772365 is an apocalyptic number.

It is an amenable number.

115667772365 is a deficient number, since it is larger than the sum of its proper divisors (24361885483).

115667772365 is a wasteful number, since it uses less digits than its factorization.

115667772365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204721839.

The product of its digits is 11113200, while the sum is 56.

The spelling of 115667772365 in words is "one hundred fifteen billion, six hundred sixty-seven million, seven hundred seventy-two thousand, three hundred sixty-five".