13346640533 has 2 divisors, whose sum is σ = 13346640534. Its totient is φ = 13346640532.

The previous prime is 13346640499. The next prime is 13346640577. The reversal of 13346640533 is 33504664331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12892012849 + 454627684 = 113543^2 + 21322^2 .

It is a cyclic number.

It is not a de Polignac number, because 13346640533 - 2⁶ = 13346640469 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13346640133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6673320266 + 6673320267.

It is an arithmetic number, because the mean of its divisors is an integer number (6673320267).

Almost surely, 2^13346640533 is an apocalyptic number.

It is an amenable number.

13346640533 is a deficient number, since it is larger than the sum of its proper divisors (1).

13346640533 is an equidigital number, since it uses as much as digits as its factorization.

13346640533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 38.

The spelling of 13346640533 in words is "thirteen billion, three hundred forty-six million, six hundred forty thousand, five hundred thirty-three".