12656323147 has 8 divisors (see below), whose sum is σ = 13643250320. Its totient is φ = 11671305120.

The previous prime is 12656323129. The next prime is 12656323151. The reversal of 12656323147 is 74132365621.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12656323147 - 2¹⁵ = 12656290379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12656323117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463497 + ... + 490042.

It is an arithmetic number, because the mean of its divisors is an integer number (1705406290).

Almost surely, 2^12656323147 is an apocalyptic number.

12656323147 is a deficient number, since it is larger than the sum of its proper divisors (986927173).

12656323147 is a wasteful number, since it uses less digits than its factorization.

12656323147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954573.

The product of its digits is 181440, while the sum is 40.

Adding to 12656323147 its reverse (74132365621), we get a palindrome (86788688768).

The spelling of 12656323147 in words is "twelve billion, six hundred fifty-six million, three hundred twenty-three thousand, one hundred forty-seven".