328725565663 has 8 divisors (see below), whose sum is σ = 364687839360. Its totient is φ = 293776313880.

The previous prime is 328725565591. The next prime is 328725565669. The reversal of 328725565663 is 366565527823.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328725565663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 328725565598 and 328725565607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328725565669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253254795 + ... + 253256092.

It is an arithmetic number, because the mean of its divisors is an integer number (45585979920).

Almost surely, 2^328725565663 is an apocalyptic number.

328725565663 is a deficient number, since it is larger than the sum of its proper divisors (35962273697).

328725565663 is a wasteful number, since it uses less digits than its factorization.

328725565663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506510957.

The product of its digits is 54432000, while the sum is 58.

The spelling of 328725565663 in words is "three hundred twenty-eight billion, seven hundred twenty-five million, five hundred sixty-five thousand, six hundred sixty-three".