122066353656 has 96 divisors (see below), whose sum is σ = 356211470160. Its totient is φ = 37539403776.

The previous prime is 122066353639. The next prime is 122066353711. The reversal of 122066353656 is 656353660221.

122066353656 is a `hidden beast` number, since 1 + 2 + 2 + 0 + 6 + 63 + 536 + 56 = 666.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1827016 + ... + 1892648.

Almost surely, 2^122066353656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122066353656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178105735080).

122066353656 is an abundant number, since it is smaller than the sum of its proper divisors (234145116504).

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

122066353656 is a wasteful number, since it uses less digits than its factorization.

122066353656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67645 (or 67638 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

The spelling of 122066353656 in words is "one hundred twenty-two billion, sixty-six million, three hundred fifty-three thousand, six hundred fifty-six".