325626663656 has 64 divisors (see below), whose sum is σ = 704487379200. Its totient is φ = 138212241408.

The previous prime is 325626663581. The next prime is 325626663701. The reversal of 325626663656 is 656366626523.

It is a Harshad number since it is a multiple of its sum of digits (56).

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 15 ways as a sum of consecutive naturals, for example, 15267656 + ... + 15288968.

It is an arithmetic number, because the mean of its divisors is an integer number (11007615300).

Almost surely, 2^325626663656 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 325626663656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352243689600).

325626663656 is an abundant number, since it is smaller than the sum of its proper divisors (378860715544).

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

325626663656 is a wasteful number, since it uses less digits than its factorization.

325626663656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23938 (or 23934 counting only the distinct ones).

The product of its digits is 41990400, while the sum is 56.

The spelling of 325626663656 in words is "three hundred twenty-five billion, six hundred twenty-six million, six hundred sixty-three thousand, six hundred fifty-six".