122666025156 has 48 divisors (see below), whose sum is σ = 286634557440. Its totient is φ = 40829610400.

The previous prime is 122666025133. The next prime is 122666025179. The reversal of 122666025156 is 651520666221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (122666025133) and next prime (122666025179).

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 15 ways as a sum of consecutive naturals, for example, 42605725 + ... + 42608603.

It is an arithmetic number, because the mean of its divisors is an integer number (5971553280).

Almost surely, 2^122666025156 is an apocalyptic number.

It is an amenable number.

122666025156 is an abundant number, since it is smaller than the sum of its proper divisors (163968532284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122666025156 is a wasteful number, since it uses less digits than its factorization.

122666025156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6784 (or 6782 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 122666025156 in words is "one hundred twenty-two billion, six hundred sixty-six million, twenty-five thousand, one hundred fifty-six".