12664123351 has 16 divisors (see below), whose sum is σ = 14241277440. Its totient is φ = 11162529280.

The previous prime is 12664123331. The next prime is 12664123363. The reversal of 12664123351 is 15332146621.

It is a cyclic number.

It is not a de Polignac number, because 12664123351 - 2⁷ = 12664123223 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 (12664123331) 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 15 ways as a sum of consecutive naturals, for example, 59146 + ... + 169783.

It is an arithmetic number, because the mean of its divisors is an integer number (890079840).

Almost surely, 2^12664123351 is an apocalyptic number.

12664123351 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12664123351 is a deficient number, since it is larger than the sum of its proper divisors (1577154089).

12664123351 is a wasteful number, since it uses less digits than its factorization.

12664123351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229094.

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

Adding to 12664123351 its reverse (15332146621), we get a palindrome (27996269972).

The spelling of 12664123351 in words is "twelve billion, six hundred sixty-four million, one hundred twenty-three thousand, three hundred fifty-one".