12344402216 has 8 divisors (see below), whose sum is σ = 23145754170. Its totient is φ = 6172201104.

The previous prime is 12344402183. The next prime is 12344402267. The reversal of 12344402216 is 61220444321.

It can be written as a sum of positive squares in only one way, i.e., 9519904900 + 2824497316 = 97570^2 + 53146^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771525131 + ... + 771525146.

Almost surely, 2^12344402216 is an apocalyptic number.

It is an amenable number.

12344402216 is a deficient number, since it is larger than the sum of its proper divisors (10801351954).

12344402216 is a wasteful number, since it uses less digits than its factorization.

12344402216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543050283 (or 1543050279 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 12344402216 its reverse (61220444321), we get a palindrome (73564846537).

The spelling of 12344402216 in words is "twelve billion, three hundred forty-four million, four hundred two thousand, two hundred sixteen".