169345582369 has 2 divisors, whose sum is σ = 169345582370. Its totient is φ = 169345582368.

The previous prime is 169345582363. The next prime is 169345582381. The reversal of 169345582369 is 963285543961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168664633344 + 680949025 = 410688^2 + 26095^2 .

It is a cyclic number.

It is not a de Polignac number, because 169345582369 - 2²⁹ = 168808711457 is a prime.

It is a super-2 number, since 2×169345582369² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (169345582363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84672791184 + 84672791185.

It is an arithmetic number, because the mean of its divisors is an integer number (84672791185).

Almost surely, 2^169345582369 is an apocalyptic number.

It is an amenable number.

169345582369 is a deficient number, since it is larger than the sum of its proper divisors (1).

169345582369 is an equidigital number, since it uses as much as digits as its factorization.

169345582369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41990400, while the sum is 61.

The spelling of 169345582369 in words is "one hundred sixty-nine billion, three hundred forty-five million, five hundred eighty-two thousand, three hundred sixty-nine".