326500122656 has 96 divisors (see below), whose sum is σ = 699927480000. Its totient is φ = 149344509952.

The previous prime is 326500122649. The next prime is 326500122679. The reversal of 326500122656 is 656221005623.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2799395 + ... + 2913693.

It is an arithmetic number, because the mean of its divisors is an integer number (7290911250).

Almost surely, 2^326500122656 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 326500122656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349963740000).

326500122656 is an abundant number, since it is smaller than the sum of its proper divisors (373427357344).

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

326500122656 is a wasteful number, since it uses less digits than its factorization.

326500122656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114474 (or 114466 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 326500122656 in words is "three hundred twenty-six billion, five hundred million, one hundred twenty-two thousand, six hundred fifty-six".