1768160597221 has 2 divisors, whose sum is σ = 1768160597222. Its totient is φ = 1768160597220.

The previous prime is 1768160597207. The next prime is 1768160597339. The reversal of 1768160597221 is 1227950618671.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1036810661121 + 731349936100 = 1018239^2 + 855190^2 .

It is a cyclic number.

It is not a de Polignac number, because 1768160597221 - 2¹³ = 1768160589029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1768160567221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 884080298610 + 884080298611.

It is an arithmetic number, because the mean of its divisors is an integer number (884080298611).

Almost surely, 2^{1768160597221} is an apocalyptic number.

It is an amenable number.

1768160597221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1768160597221 is an equidigital number, since it uses as much as digits as its factorization.

1768160597221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2540160, while the sum is 55.

The spelling of 1768160597221 in words is "one trillion, seven hundred sixty-eight billion, one hundred sixty million, five hundred ninety-seven thousand, two hundred twenty-one".