12656323146 has 8 divisors (see below), whose sum is σ = 25312646304. Its totient is φ = 4218774380.

The previous prime is 12656323129. The next prime is 12656323151. The reversal of 12656323146 is 64132365621.

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

12656323146 is an admirable number.

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, 1054693590 + ... + 1054693601.

It is an arithmetic number, because the mean of its divisors is an integer number (3164080788).

Almost surely, 2^12656323146 is an apocalyptic number.

12656323146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12656323146 is a wasteful number, since it uses less digits than its factorization.

12656323146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109387196.

The product of its digits is 155520, while the sum is 39.

Adding to 12656323146 its reverse (64132365621), we get a palindrome (76788688767).

The spelling of 12656323146 in words is "twelve billion, six hundred fifty-six million, three hundred twenty-three thousand, one hundred forty-six".