122578966165 has 16 divisors (see below), whose sum is σ = 155453497920. Its totient is φ = 92531808000.

The previous prime is 122578966163. The next prime is 122578966207. The reversal of 122578966165 is 561669875221.

It is a happy number.

It is not a de Polignac number, because 122578966165 - 2¹ = 122578966163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122578966163) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2546484 + ... + 2594173.

It is an arithmetic number, because the mean of its divisors is an integer number (9715843620).

Almost surely, 2^122578966165 is an apocalyptic number.

It is an amenable number.

122578966165 is a deficient number, since it is larger than the sum of its proper divisors (32874531755).

122578966165 is a wasteful number, since it uses less digits than its factorization.

122578966165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5140932.

The product of its digits is 10886400, while the sum is 58.

The spelling of 122578966165 in words is "one hundred twenty-two billion, five hundred seventy-eight million, nine hundred sixty-six thousand, one hundred sixty-five".