12533133256621 has 8 divisors (see below), whose sum is σ = 12995392204800. Its totient is φ = 12072879771120.

The previous prime is 12533133256613. The next prime is 12533133256643. The reversal of 12533133256621 is 12665233133521.

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 12533133256621 - 2³ = 12533133256613 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 (12533133256601) 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, 501352941 + ... + 501377938.

It is an arithmetic number, because the mean of its divisors is an integer number (1624424025600).

Almost surely, 2^{12533133256621} is an apocalyptic number.

It is an amenable number.

12533133256621 is a deficient number, since it is larger than the sum of its proper divisors (462258948179).

12533133256621 is a wasteful number, since it uses less digits than its factorization.

12533133256621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002731339.

The product of its digits is 583200, while the sum is 43.

The spelling of 12533133256621 in words is "twelve trillion, five hundred thirty-three billion, one hundred thirty-three million, two hundred fifty-six thousand, six hundred twenty-one".