12165534467 has 2 divisors, whose sum is σ = 12165534468. Its totient is φ = 12165534466.

The previous prime is 12165534443. The next prime is 12165534527. The reversal of 12165534467 is 76443556121.

12165534467 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12165534467 - 2²⁰ = 12164485891 is a prime.

It is not a weakly prime, because it can be changed into another prime (12165534427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6082767233 + 6082767234.

It is an arithmetic number, because the mean of its divisors is an integer number (6082767234).

Almost surely, 2^12165534467 is an apocalyptic number.

12165534467 is a deficient number, since it is larger than the sum of its proper divisors (1).

12165534467 is an equidigital number, since it uses as much as digits as its factorization.

12165534467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 44.

The spelling of 12165534467 in words is "twelve billion, one hundred sixty-five million, five hundred thirty-four thousand, four hundred sixty-seven".