169428666791 has 2 divisors, whose sum is σ = 169428666792. Its totient is φ = 169428666790.

The previous prime is 169428666763. The next prime is 169428666811. The reversal of 169428666791 is 197666824961.

It is a strong prime.

It is an emirp because it is prime and its reverse (197666824961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 169428666791 - 2¹⁴ = 169428650407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (169428666721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84714333395 + 84714333396.

It is an arithmetic number, because the mean of its divisors is an integer number (84714333396).

Almost surely, 2^169428666791 is an apocalyptic number.

169428666791 is a deficient number, since it is larger than the sum of its proper divisors (1).

169428666791 is an equidigital number, since it uses as much as digits as its factorization.

169428666791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47029248, while the sum is 65.

The spelling of 169428666791 in words is "one hundred sixty-nine billion, four hundred twenty-eight million, six hundred sixty-six thousand, seven hundred ninety-one".