1328316337530 has 640 divisors, whose sum is σ = 4457003443200. Its totient is φ = 276397608960.

The previous prime is 1328316337519. The next prime is 1328316337583. The reversal of 1328316337530 is 357336138231.

1328316337530 is a `hidden beast` number, since 1 + 3 + 2 + 8 + 3 + 1 + 633 + 7 + 5 + 3 + 0 = 666.

It is a super-2 number, since 2×1328316337530² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 2009555400 + ... + 2009556060.

It is an arithmetic number, because the mean of its divisors is an integer number (6964067880).

Almost surely, 2^{1328316337530} is an apocalyptic number.

1328316337530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1328316337530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2228501721600).

1328316337530 is an abundant number, since it is smaller than the sum of its proper divisors (3128687105670).

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

1328316337530 is a wasteful number, since it uses less digits than its factorization.

1328316337530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036 (or 1027 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 45.

The spelling of 1328316337530 in words is "one trillion, three hundred twenty-eight billion, three hundred sixteen million, three hundred thirty-seven thousand, five hundred thirty".