163368425497 has 2 divisors, whose sum is σ = 163368425498. Its totient is φ = 163368425496.

The previous prime is 163368425447. The next prime is 163368425531. The reversal of 163368425497 is 794524863361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119972869641 + 43395555856 = 346371^2 + 208316^2 .

It is a cyclic number.

It is not a de Polignac number, because 163368425497 - 2²⁷ = 163234207769 is a prime.

It is not a weakly prime, because it can be changed into another prime (163368425447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81684212748 + 81684212749.

It is an arithmetic number, because the mean of its divisors is an integer number (81684212749).

Almost surely, 2^163368425497 is an apocalyptic number.

It is an amenable number.

163368425497 is a deficient number, since it is larger than the sum of its proper divisors (1).

163368425497 is an equidigital number, since it uses as much as digits as its factorization.

163368425497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26127360, while the sum is 58.

The spelling of 163368425497 in words is "one hundred sixty-three billion, three hundred sixty-eight million, four hundred twenty-five thousand, four hundred ninety-seven".