169936386941 has 2 divisors, whose sum is σ = 169936386942. Its totient is φ = 169936386940.

The previous prime is 169936386887. The next prime is 169936386947. The reversal of 169936386941 is 149683639961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129489143716 + 40447243225 = 359846^2 + 201115^2 .

It is a cyclic number.

It is not a de Polignac number, because 169936386941 - 2¹⁰ = 169936385917 is a prime.

It is a super-2 number, since 2×169936386941² (a number of 23 digits) contains 22 as substring.

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 (169936386947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84968193470 + 84968193471.

It is an arithmetic number, because the mean of its divisors is an integer number (84968193471).

Almost surely, 2^169936386941 is an apocalyptic number.

It is an amenable number.

169936386941 is a deficient number, since it is larger than the sum of its proper divisors (1).

169936386941 is an equidigital number, since it uses as much as digits as its factorization.

169936386941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45349632, while the sum is 65.

The spelling of 169936386941 in words is "one hundred sixty-nine billion, nine hundred thirty-six million, three hundred eighty-six thousand, nine hundred forty-one".