13706921165533 has 2 divisors, whose sum is σ = 13706921165534. Its totient is φ = 13706921165532.

The previous prime is 13706921165503. The next prime is 13706921165603. The reversal of 13706921165533 is 33556112960731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10013598238329 + 3693322927204 = 3164427^2 + 1921802^2 .

It is a cyclic number.

It is not a de Polignac number, because 13706921165533 - 2²⁹ = 13706384294621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13706921165503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6853460582766 + 6853460582767.

It is an arithmetic number, because the mean of its divisors is an integer number (6853460582767).

Almost surely, 2^{13706921165533} is an apocalyptic number.

It is an amenable number.

13706921165533 is a deficient number, since it is larger than the sum of its proper divisors (1).

13706921165533 is an equidigital number, since it uses as much as digits as its factorization.

13706921165533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3061800, while the sum is 52.

The spelling of 13706921165533 in words is "thirteen trillion, seven hundred six billion, nine hundred twenty-one million, one hundred sixty-five thousand, five hundred thirty-three".