12452311216 has 10 divisors (see below), whose sum is σ = 24126353012. Its totient is φ = 6226155600.

The previous prime is 12452311213. The next prime is 12452311237. The reversal of 12452311216 is 61211325421.

It is not an unprimeable number, because it can be changed into a prime (12452311213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 389134710 + ... + 389134741.

Almost surely, 2^12452311216 is an apocalyptic number.

12452311216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12452311216 is a deficient number, since it is larger than the sum of its proper divisors (11674041796).

12452311216 is an equidigital number, since it uses as much as digits as its factorization.

12452311216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778269459 (or 778269453 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

Adding to 12452311216 its reverse (61211325421), we get a palindrome (73663636637).

The spelling of 12452311216 in words is "twelve billion, four hundred fifty-two million, three hundred eleven thousand, two hundred sixteen".