1155440732352 has 112 divisors (see below), whose sum is σ = 3071559284352. Its totient is φ = 383328256000.

The previous prime is 1155440732323. The next prime is 1155440732353. The reversal of 1155440732352 is 2532370445511.

It is not an unprimeable number, because it can be changed into a prime (1155440732353) 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, 63299227 + ... + 63317477.

Almost surely, 2^{1155440732352} is an apocalyptic number.

1155440732352 is a gapful number since it is divisible by the number (12) 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 1155440732352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1535779642176).

1155440732352 is an abundant number, since it is smaller than the sum of its proper divisors (1916118552000).

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

1155440732352 is a wasteful number, since it uses less digits than its factorization.

1155440732352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19806 (or 19796 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 42.

The spelling of 1155440732352 in words is "one trillion, one hundred fifty-five billion, four hundred forty million, seven hundred thirty-two thousand, three hundred fifty-two".