16463116121 has 2 divisors, whose sum is σ = 16463116122. Its totient is φ = 16463116120.

The previous prime is 16463116093. The next prime is 16463116177. The reversal of 16463116121 is 12161136461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10180810000 + 6282306121 = 100900^2 + 79261^2 .

It is a cyclic number.

It is not a de Polignac number, because 16463116121 - 2¹⁸ = 16462853977 is a prime.

It is not a weakly prime, because it can be changed into another prime (16463416121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8231558060 + 8231558061.

It is an arithmetic number, because the mean of its divisors is an integer number (8231558061).

Almost surely, 2^16463116121 is an apocalyptic number.

It is an amenable number.

16463116121 is a deficient number, since it is larger than the sum of its proper divisors (1).

16463116121 is an equidigital number, since it uses as much as digits as its factorization.

16463116121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 32.

The spelling of 16463116121 in words is "sixteen billion, four hundred sixty-three million, one hundred sixteen thousand, one hundred twenty-one".