12266518469 has 4 divisors (see below), whose sum is σ = 12268892160. Its totient is φ = 12264144780.

The previous prime is 12266518417. The next prime is 12266518489. The reversal of 12266518469 is 96481566221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96481566221 = 5657 ⋅17055253.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12266518469 is a prime.

It is a super-2 number, since 2×12266518469² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12266518489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1179077 + ... + 1189434.

It is an arithmetic number, because the mean of its divisors is an integer number (3067223040).

Almost surely, 2^12266518469 is an apocalyptic number.

It is an amenable number.

12266518469 is a deficient number, since it is larger than the sum of its proper divisors (2373691).

12266518469 is an equidigital number, since it uses as much as digits as its factorization.

12266518469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2373690.

The product of its digits is 1244160, while the sum is 50.

The spelling of 12266518469 in words is "twelve billion, two hundred sixty-six million, five hundred eighteen thousand, four hundred sixty-nine".