168660941 has 2 divisors, whose sum is σ = 168660942. Its totient is φ = 168660940.

The previous prime is 168660931. The next prime is 168660979. The reversal of 168660941 is 149066861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167702500 + 958441 = 12950^2 + 979^2 .

It is an emirp because it is prime and its reverse (149066861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168660941 - 2¹⁰ = 168659917 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168660931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84330470 + 84330471.

It is an arithmetic number, because the mean of its divisors is an integer number (84330471).

Almost surely, 2^168660941 is an apocalyptic number.

It is an amenable number.

168660941 is a deficient number, since it is larger than the sum of its proper divisors (1).

168660941 is an equidigital number, since it uses as much as digits as its factorization.

168660941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 168660941 is about 12986.9527218667. The cubic root of 168660941 is about 552.5074940119.

The spelling of 168660941 in words is "one hundred sixty-eight million, six hundred sixty thousand, nine hundred forty-one".