168040893301 has 2 divisors, whose sum is σ = 168040893302. Its totient is φ = 168040893300.

The previous prime is 168040893299. The next prime is 168040893337. The reversal of 168040893301 is 103398040861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164857112676 + 3183780625 = 406026^2 + 56425^2 .

It is a cyclic number.

It is not a de Polignac number, because 168040893301 - 2¹ = 168040893299 is a prime.

Together with 168040893299, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168040893001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84020446650 + 84020446651.

It is an arithmetic number, because the mean of its divisors is an integer number (84020446651).

Almost surely, 2^168040893301 is an apocalyptic number.

It is an amenable number.

168040893301 is a deficient number, since it is larger than the sum of its proper divisors (1).

168040893301 is an equidigital number, since it uses as much as digits as its factorization.

168040893301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 168040893301 in words is "one hundred sixty-eight billion, forty million, eight hundred ninety-three thousand, three hundred one".