12123065146256 has 20 divisors (see below), whose sum is σ = 23488864882800. Its totient is φ = 6061422595872.

The previous prime is 12123065146253. The next prime is 12123065146261. The reversal of 12123065146256 is 65264156032121.

It is not an unprimeable number, because it can be changed into a prime (12123065146253) 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, 5960486 + ... + 7731333.

It is an arithmetic number, because the mean of its divisors is an integer number (1174443244140).

Almost surely, 2^{12123065146256} is an apocalyptic number.

12123065146256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12123065146256 is a deficient number, since it is larger than the sum of its proper divisors (11365799736544).

12123065146256 is a wasteful number, since it uses less digits than its factorization.

12123065146256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13747166 (or 13747160 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 12123065146256 in words is "twelve trillion, one hundred twenty-three billion, sixty-five million, one hundred forty-six thousand, two hundred fifty-six".