325648587781696 has 21 divisors (see below), whose sum is σ = 646209202855489. Its totient is φ = 162824221707904.

The previous prime is 325648587781631. The next prime is 325648587781697. The reversal of 325648587781696 is 696187785846523.

The square root of 325648587781696 is 18045736.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 170199159681600 + 155449428100096 = 13046040^2 + 12467936^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (325648587781697) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 143238030 + ... + 145493746.

Almost surely, 2^{325648587781696} is an apocalyptic number.

325648587781696 is the 18045736-th square number.

It is an amenable number.

325648587781696 is a deficient number, since it is larger than the sum of its proper divisors (320560615073793).

325648587781696 is an frugal number, since it uses more digits than its factorization.

325648587781696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4511446 (or 2255719 counting only the distinct ones).

The product of its digits is 29262643200, while the sum is 85.

The spelling of 325648587781696 in words is "three hundred twenty-five trillion, six hundred forty-eight billion, five hundred eighty-seven million, seven hundred eighty-one thousand, six hundred ninety-six".