12645502518233 has 8 divisors (see below), whose sum is σ = 13618435357128. Its totient is φ = 11672598518784.

The previous prime is 12645502518221. The next prime is 12645502518293. The reversal of 12645502518233 is 33281520554621.

It can be written as a sum of positive squares in 4 ways, for example, as 54948985744 + 12590553532489 = 234412^2 + 3548317^2 .

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 12645502518233 - 2¹² = 12645502514137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12645502518293) 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, 6294866 + ... + 8057067.

It is an arithmetic number, because the mean of its divisors is an integer number (1702304419641).

Almost surely, 2^{12645502518233} is an apocalyptic number.

12645502518233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12645502518233 is a deficient number, since it is larger than the sum of its proper divisors (972932838895).

12645502518233 is a wasteful number, since it uses less digits than its factorization.

12645502518233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14419723.

The product of its (nonzero) digits is 1728000, while the sum is 47.

The spelling of 12645502518233 in words is "twelve trillion, six hundred forty-five billion, five hundred two million, five hundred eighteen thousand, two hundred thirty-three".