12631215216 has 20 divisors (see below), whose sum is σ = 32630639432. Its totient is φ = 4210405056.

The previous prime is 12631215193. The next prime is 12631215227. The reversal of 12631215216 is 61251213621.

It is a congruent number.

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, 131575111 + ... + 131575206.

Almost surely, 2^12631215216 is an apocalyptic number.

12631215216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12631215216 is an abundant number, since it is smaller than the sum of its proper divisors (19999424216).

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

12631215216 is a wasteful number, since it uses less digits than its factorization.

12631215216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263150328 (or 263150322 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

Adding to 12631215216 its reverse (61251213621), we get a palindrome (73882428837).

The spelling of 12631215216 in words is "twelve billion, six hundred thirty-one million, two hundred fifteen thousand, two hundred sixteen".