11968507165 has 8 divisors (see below), whose sum is σ = 14392965600. Its totient is φ = 9554301072.

The previous prime is 11968507157. The next prime is 11968507181. The reversal of 11968507165 is 56170586911.

It is a happy number.

11968507165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11968507165 - 2³ = 11968507157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2560515 + ... + 2565184.

It is an arithmetic number, because the mean of its divisors is an integer number (1799120700).

Almost surely, 2^11968507165 is an apocalyptic number.

It is an amenable number.

11968507165 is a deficient number, since it is larger than the sum of its proper divisors (2424458435).

11968507165 is an equidigital number, since it uses as much as digits as its factorization.

11968507165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5126171.

The product of its (nonzero) digits is 453600, while the sum is 49.

The spelling of 11968507165 in words is "eleven billion, nine hundred sixty-eight million, five hundred seven thousand, one hundred sixty-five".