168946604033 has 2 divisors, whose sum is σ = 168946604034. Its totient is φ = 168946604032.

The previous prime is 168946603967. The next prime is 168946604069. The reversal of 168946604033 is 330406649861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168737743729 + 208860304 = 410777^2 + 14452^2 .

It is an emirp because it is prime and its reverse (330406649861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168946604033 - 2¹² = 168946599937 is a prime.

It is not a weakly prime, because it can be changed into another prime (168946609033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84473302016 + 84473302017.

It is an arithmetic number, because the mean of its divisors is an integer number (84473302017).

Almost surely, 2^168946604033 is an apocalyptic number.

It is an amenable number.

168946604033 is a deficient number, since it is larger than the sum of its proper divisors (1).

168946604033 is an equidigital number, since it uses as much as digits as its factorization.

168946604033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2239488, while the sum is 50.

The spelling of 168946604033 in words is "one hundred sixty-eight billion, nine hundred forty-six million, six hundred four thousand, thirty-three".