122566252155613 has 4 divisors (see below), whose sum is σ = 140075716749280. Its totient is φ = 105056787561948.

The previous prime is 122566252155587. The next prime is 122566252155637. The reversal of 122566252155613 is 316551252665221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122566252155613 - 2²⁵ = 122566218601181 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 (122566252155313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8754732296823 + ... + 8754732296836.

It is an arithmetic number, because the mean of its divisors is an integer number (35018929187320).

Almost surely, 2^{122566252155613} is an apocalyptic number.

It is an amenable number.

122566252155613 is a deficient number, since it is larger than the sum of its proper divisors (17509464593667).

122566252155613 is an equidigital number, since it uses as much as digits as its factorization.

122566252155613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17509464593666.

The product of its digits is 6480000, while the sum is 52.

The spelling of 122566252155613 in words is "one hundred twenty-two trillion, five hundred sixty-six billion, two hundred fifty-two million, one hundred fifty-five thousand, six hundred thirteen".