1328165278528 has 56 divisors (see below), whose sum is σ = 3026501053920. Its totient is φ = 571937195520.

The previous prime is 1328165278493. The next prime is 1328165278529. The reversal of 1328165278528 is 8258725618231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328165278529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49633951 + ... + 49660702.

Almost surely, 2^{1328165278528} is an apocalyptic number.

It is an amenable number.

1328165278528 is an abundant number, since it is smaller than the sum of its proper divisors (1698335775392).

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

1328165278528 is a wasteful number, since it uses less digits than its factorization.

1328165278528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99294695 (or 99294685 counting only the distinct ones).

The product of its digits is 12902400, while the sum is 58.

The spelling of 1328165278528 in words is "one trillion, three hundred twenty-eight billion, one hundred sixty-five million, two hundred seventy-eight thousand, five hundred twenty-eight".