328855415520 has 96 divisors (see below), whose sum is σ = 1048375343232. Its totient is φ = 86638203392.

The previous prime is 328855415507. The next prime is 328855415527. The reversal of 328855415520 is 25514558823.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 328855415520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328855415527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4087362 + ... + 4167041.

It is an arithmetic number, because the mean of its divisors is an integer number (10920576492).

Almost surely, 2^328855415520 is an apocalyptic number.

328855415520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

328855415520 is an abundant number, since it is smaller than the sum of its proper divisors (719519927712).

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

328855415520 is a wasteful number, since it uses less digits than its factorization.

328855415520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8254504 (or 8254496 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 48.

The spelling of 328855415520 in words is "three hundred twenty-eight billion, eight hundred fifty-five million, four hundred fifteen thousand, five hundred twenty".