169420910535953 has 2 divisors, whose sum is σ = 169420910535954. Its totient is φ = 169420910535952.

The previous prime is 169420910535931. The next prime is 169420910536093. The reversal of 169420910535953 is 359535019024961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169336269107329 + 84641428624 = 13012927^2 + 290932^2 .

It is a cyclic number.

It is not a de Polignac number, because 169420910535953 - 2²⁰ = 169420909487377 is a prime.

It is not a weakly prime, because it can be changed into another prime (169420910535913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84710455267976 + 84710455267977.

It is an arithmetic number, because the mean of its divisors is an integer number (84710455267977).

Almost surely, 2^{169420910535953} is an apocalyptic number.

It is an amenable number.

169420910535953 is a deficient number, since it is larger than the sum of its proper divisors (1).

169420910535953 is an equidigital number, since it uses as much as digits as its factorization.

169420910535953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39366000, while the sum is 62.

The spelling of 169420910535953 in words is "one hundred sixty-nine trillion, four hundred twenty billion, nine hundred ten million, five hundred thirty-five thousand, nine hundred fifty-three".