13706921165603 has 2 divisors, whose sum is σ = 13706921165604. Its totient is φ = 13706921165602.

The previous prime is 13706921165533. The next prime is 13706921165653. The reversal of 13706921165603 is 30656112960731.

It is an a-pointer prime, because the next prime (13706921165653) can be obtained adding 13706921165603 to its sum of digits (50).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13706921165603 - 2³² = 13702626198307 is a prime.

It is not a weakly prime, because it can be changed into another prime (13706921165653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6853460582801 + 6853460582802.

It is an arithmetic number, because the mean of its divisors is an integer number (6853460582802).

Almost surely, 2^{13706921165603} is an apocalyptic number.

13706921165603 is a deficient number, since it is larger than the sum of its proper divisors (1).

13706921165603 is an equidigital number, since it uses as much as digits as its factorization.

13706921165603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 50.

The spelling of 13706921165603 in words is "thirteen trillion, seven hundred six billion, nine hundred twenty-one million, one hundred sixty-five thousand, six hundred three".