13636126216 has 16 divisors (see below), whose sum is σ = 25754364540. Its totient is φ = 6768295680.

The previous prime is 13636126193. The next prime is 13636126303. The reversal of 13636126216 is 61262163631.

It can be written as a sum of positive squares in 2 ways, for example, as 13258601316 + 377524900 = 115146^2 + 19430^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6219765 + ... + 6221956.

Almost surely, 2^13636126216 is an apocalyptic number.

It is an amenable number.

13636126216 is a deficient number, since it is larger than the sum of its proper divisors (12118238324).

13636126216 is a wasteful number, since it uses less digits than its factorization.

13636126216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12441864 (or 12441860 counting only the distinct ones).

The product of its digits is 46656, while the sum is 37.

Adding to 13636126216 its reverse (61262163631), we get a palindrome (74898289847).

The spelling of 13636126216 in words is "thirteen billion, six hundred thirty-six million, one hundred twenty-six thousand, two hundred sixteen".