122345666679 has 8 divisors (see below), whose sum is σ = 168389734912. Its totient is φ = 78932688120.

The previous prime is 122345666671. The next prime is 122345666683. The reversal of 122345666679 is 976666543221.

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

It is not a de Polignac number, because 122345666679 - 2³ = 122345666671 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122345666671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 657772309 + ... + 657772494.

It is an arithmetic number, because the mean of its divisors is an integer number (21048716864).

Almost surely, 2^122345666679 is an apocalyptic number.

122345666679 is a deficient number, since it is larger than the sum of its proper divisors (46044068233).

122345666679 is a wasteful number, since it uses less digits than its factorization.

122345666679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315544837.

The product of its digits is 19595520, while the sum is 57.

The spelling of 122345666679 in words is "one hundred twenty-two billion, three hundred forty-five million, six hundred sixty-six thousand, six hundred seventy-nine".