122666355 has 36 divisors (see below), whose sum is σ = 247339872. Its totient is φ = 56075040.

The previous prime is 122666329. The next prime is 122666371. The reversal of 122666355 is 553666221.

It is a happy number.

It is not a de Polignac number, because 122666355 - 2⁷ = 122666227 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 25611 + ... + 30020.

It is an arithmetic number, because the mean of its divisors is an integer number (6870552).

Almost surely, 2^122666355 is an apocalyptic number.

122666355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122666355 is an abundant number, since it is smaller than the sum of its proper divisors (124673517).

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

122666355 is a wasteful number, since it uses less digits than its factorization.

122666355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55656 (or 55646 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 122666355 is about 11075.4844137852. The cubic root of 122666355 is about 496.8689067723.

The spelling of 122666355 in words is "one hundred twenty-two million, six hundred sixty-six thousand, three hundred fifty-five".