12163442897 has 8 divisors (see below), whose sum is σ = 12897590112. Its totient is φ = 11431368000.

The previous prime is 12163442839. The next prime is 12163442909. The reversal of 12163442897 is 79824436121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12163442897 - 2¹² = 12163438801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12163442807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505979 + ... + 529472.

It is an arithmetic number, because the mean of its divisors is an integer number (1612198764).

Almost surely, 2^12163442897 is an apocalyptic number.

12163442897 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12163442897 is a deficient number, since it is larger than the sum of its proper divisors (734147215).

12163442897 is a wasteful number, since it uses less digits than its factorization.

12163442897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036159.

The product of its digits is 580608, while the sum is 47.

Adding to 12163442897 its sum of digits (47), we get a square (12163442944 = 110288²).

The spelling of 12163442897 in words is "twelve billion, one hundred sixty-three million, four hundred forty-two thousand, eight hundred ninety-seven".