328407621056 has 14 divisors (see below), whose sum is σ = 651683873160. Its totient is φ = 164203810496.

The previous prime is 328407621019. The next prime is 328407621097. The reversal of 328407621056 is 650126704823.

It is a super-2 number, since 2×328407621056² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 328407620998 and 328407621016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2565684476 + ... + 2565684603.

Almost surely, 2^328407621056 is an apocalyptic number.

It is an amenable number.

328407621056 is a deficient number, since it is larger than the sum of its proper divisors (323276252104).

328407621056 is an equidigital number, since it uses as much as digits as its factorization.

328407621056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5131369091 (or 5131369081 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 328407621056 in words is "three hundred twenty-eight billion, four hundred seven million, six hundred twenty-one thousand, fifty-six".