328662044126640 has 480 divisors, whose sum is σ = 1307966994087936. Its totient is φ = 72373424209920.

The previous prime is 328662044126489. The next prime is 328662044126651. The reversal of 328662044126640 is 46621440266823.

328662044126640 is a `hidden beast` number, since 3 + 2 + 8 + 6 + 620 + 4 + 4 + 1 + 2 + 6 + 6 + 4 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 30124992 + ... + 39558048.

Almost surely, 2^{328662044126640} is an apocalyptic number.

328662044126640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 328662044126640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (653983497043968).

328662044126640 is an abundant number, since it is smaller than the sum of its proper divisors (979304949961296).

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

328662044126640 is a wasteful number, since it uses less digits than its factorization.

328662044126640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9433337 (or 9433328 counting only the distinct ones).

The product of its (nonzero) digits is 15925248, while the sum is 54.

The spelling of 328662044126640 in words is "three hundred twenty-eight trillion, six hundred sixty-two billion, forty-four million, one hundred twenty-six thousand, six hundred forty".