168338669 has 2 divisors, whose sum is σ = 168338670. Its totient is φ = 168338668.

The previous prime is 168338663. The next prime is 168338693. The reversal of 168338669 is 966833861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137124100 + 31214569 = 11710^2 + 5587^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168338669 is a prime.

It is a super-2 number, since 2×168338669² = 56675814961383122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168338663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84169334 + 84169335.

It is an arithmetic number, because the mean of its divisors is an integer number (84169335).

Almost surely, 2^168338669 is an apocalyptic number.

It is an amenable number.

168338669 is a deficient number, since it is larger than the sum of its proper divisors (1).

168338669 is an equidigital number, since it uses as much as digits as its factorization.

168338669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 50.

The square root of 168338669 is about 12974.5392596423. The cubic root of 168338669 is about 552.1553650135.

The spelling of 168338669 in words is "one hundred sixty-eight million, three hundred thirty-eight thousand, six hundred sixty-nine".