12163120512642 has 24 divisors (see below), whose sum is σ = 28749193939440. Its totient is φ = 3685794094680.

The previous prime is 12163120512617. The next prime is 12163120512649. The reversal of 12163120512642 is 24621502136121.

12163120512642 is a `hidden beast` number, since 1 + 2 + 1 + 6 + 3 + 1 + 2 + 0 + 5 + 1 + 2 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12163120512597 and 12163120512606.

It is not an unprimeable number, because it can be changed into a prime (12163120512649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30714950592 + ... + 30714950987.

It is an arithmetic number, because the mean of its divisors is an integer number (1197883080810).

Almost surely, 2^{12163120512642} is an apocalyptic number.

12163120512642 is an abundant number, since it is smaller than the sum of its proper divisors (16586073426798).

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

12163120512642 is a wasteful number, since it uses less digits than its factorization.

12163120512642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61429901598 (or 61429901595 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

Adding to 12163120512642 its reverse (24621502136121), we get a palindrome (36784622648763).

The spelling of 12163120512642 in words is "twelve trillion, one hundred sixty-three billion, one hundred twenty million, five hundred twelve thousand, six hundred forty-two".