12465430165 has 4 divisors (see below), whose sum is σ = 14958516204. Its totient is φ = 9972344128.

The previous prime is 12465430163. The next prime is 12465430171. The reversal of 12465430165 is 56103456421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56103456421 = 37 ⋅1516309633.

It can be written as a sum of positive squares in 2 ways, for example, as 5352531921 + 7112898244 = 73161^2 + 84338^2 .

It is a cyclic number.

It is not a de Polignac number, because 12465430165 - 2¹ = 12465430163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12465430163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1246543012 + ... + 1246543021.

It is an arithmetic number, because the mean of its divisors is an integer number (3739629051).

Almost surely, 2^12465430165 is an apocalyptic number.

It is an amenable number.

12465430165 is a deficient number, since it is larger than the sum of its proper divisors (2493086039).

12465430165 is an equidigital number, since it uses as much as digits as its factorization.

12465430165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2493086038.

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 12465430165 its reverse (56103456421), we get a palindrome (68568886586).

The spelling of 12465430165 in words is "twelve billion, four hundred sixty-five million, four hundred thirty thousand, one hundred sixty-five".