12163211612568 has 112 divisors (see below), whose sum is σ = 34462632065280. Its totient is φ = 4022479185984.

The previous prime is 12163211612549. The next prime is 12163211612597. The reversal of 12163211612568 is 86521611236121.

12163211612568 is a `hidden beast` number, since 1 + 2 + 1 + 6 + 3 + 21 + 1 + 61 + 2 + 568 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 7470355 + ... + 8951682.

Almost surely, 2^{12163211612568} is an apocalyptic number.

12163211612568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12163211612568 is an abundant number, since it is smaller than the sum of its proper divisors (22299420452712).

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

12163211612568 is a wasteful number, since it uses less digits than its factorization.

12163211612568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16422188 (or 16422169 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

Adding to 12163211612568 its reverse (86521611236121), we get a palindrome (98684822848689).

The spelling of 12163211612568 in words is "twelve trillion, one hundred sixty-three billion, two hundred eleven million, six hundred twelve thousand, five hundred sixty-eight".