328216340820 has 48 divisors (see below), whose sum is σ = 919034480448. Its totient is φ = 87521621760.

The previous prime is 328216340813. The next prime is 328216340827. The reversal of 328216340820 is 28043612823.

It is an interprime number because it is at equal distance from previous prime (328216340813) and next prime (328216340827).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328216340827) 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, 2492472 + ... + 2620848.

It is an arithmetic number, because the mean of its divisors is an integer number (19146551676).

Almost surely, 2^328216340820 is an apocalyptic number.

328216340820 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

328216340820 is an abundant number, since it is smaller than the sum of its proper divisors (590818139628).

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

328216340820 is a wasteful number, since it uses less digits than its factorization.

328216340820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171000 (or 170998 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The spelling of 328216340820 in words is "three hundred twenty-eight billion, two hundred sixteen million, three hundred forty thousand, eight hundred twenty".