12163869363921 has 16 divisors (see below), whose sum is σ = 17820187956480. Its totient is φ = 7319005762320.

The previous prime is 12163869363869. The next prime is 12163869363977. The reversal of 12163869363921 is 12936396836121.

It is not a de Polignac number, because 12163869363921 - 2³⁰ = 12162795622097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12163869361921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1325902255 + ... + 1325911428.

It is an arithmetic number, because the mean of its divisors is an integer number (1113761747280).

Almost surely, 2^{12163869363921} is an apocalyptic number.

12163869363921 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12163869363921 is a deficient number, since it is larger than the sum of its proper divisors (5656318592559).

12163869363921 is a wasteful number, since it uses less digits than its factorization.

12163869363921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2651813836.

The product of its digits is 15116544, while the sum is 60.

The spelling of 12163869363921 in words is "twelve trillion, one hundred sixty-three billion, eight hundred sixty-nine million, three hundred sixty-three thousand, nine hundred twenty-one".