12665232106 has 8 divisors (see below), whose sum is σ = 18999382500. Its totient is φ = 6332104608.

The previous prime is 12665232077. The next prime is 12665232113. The reversal of 12665232106 is 60123256621.

It can be written as a sum of positive squares in 2 ways, for example, as 10330892881 + 2334339225 = 101641^2 + 48315^2 .

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

It is a plaindrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223981 + ... + 274768.

Almost surely, 2^12665232106 is an apocalyptic number.

12665232106 is a deficient number, since it is larger than the sum of its proper divisors (6334150394).

12665232106 is a wasteful number, since it uses less digits than its factorization.

12665232106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511448.

The product of its (nonzero) digits is 25920, while the sum is 34.

Adding to 12665232106 its reverse (60123256621), we get a palindrome (72788488727).

The spelling of 12665232106 in words is "twelve billion, six hundred sixty-five million, two hundred thirty-two thousand, one hundred six".