1215512332352 has 28 divisors (see below), whose sum is σ = 2433377717436. Its totient is φ = 602377789440.

The previous prime is 1215512332241. The next prime is 1215512332379. The reversal of 1215512332352 is 2532332155121.

It can be written as a sum of positive squares in 2 ways, for example, as 645040284736 + 570472047616 = 803144^2 + 755296^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84029849 + ... + 84044312.

Almost surely, 2^{1215512332352} is an apocalyptic number.

It is an amenable number.

1215512332352 is an abundant number, since it is smaller than the sum of its proper divisors (1217865385084).

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

1215512332352 is a wasteful number, since it uses less digits than its factorization.

1215512332352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168074286 (or 168074276 counting only the distinct ones).

The product of its digits is 54000, while the sum is 35.

Adding to 1215512332352 its reverse (2532332155121), we get a palindrome (3747844487473).

The spelling of 1215512332352 in words is "one trillion, two hundred fifteen billion, five hundred twelve million, three hundred thirty-two thousand, three hundred fifty-two".