1181565732252 has 48 divisors (see below), whose sum is σ = 2780480489472. Its totient is φ = 390511400640.

The previous prime is 1181565732229. The next prime is 1181565732311. The reversal of 1181565732252 is 2522375651811.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13524 + ... + 1537307.

It is an arithmetic number, because the mean of its divisors is an integer number (57926676864).

Almost surely, 2^{1181565732252} is an apocalyptic number.

1181565732252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1181565732252 is an abundant number, since it is smaller than the sum of its proper divisors (1598914757220).

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

1181565732252 is a wasteful number, since it uses less digits than its factorization.

1181565732252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551378 (or 1551376 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 48.

The spelling of 1181565732252 in words is "one trillion, one hundred eighty-one billion, five hundred sixty-five million, seven hundred thirty-two thousand, two hundred fifty-two".