1331355065488 has 160 divisors (see below), whose sum is σ = 3093983972352. Its totient is φ = 543125606400.

The previous prime is 1331355065483. The next prime is 1331355065489. The reversal of 1331355065488 is 8845605531331.

It is not an unprimeable number, because it can be changed into a prime (1331355065483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44035945 + ... + 44066167.

Almost surely, 2^{1331355065488} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1331355065488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1546991986176).

1331355065488 is an abundant number, since it is smaller than the sum of its proper divisors (1762628906864).

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

1331355065488 is a wasteful number, since it uses less digits than its factorization.

1331355065488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30513 (or 30507 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 52.

The spelling of 1331355065488 in words is "one trillion, three hundred thirty-one billion, three hundred fifty-five million, sixty-five thousand, four hundred eighty-eight".