163400323997 has 2 divisors, whose sum is σ = 163400323998. Its totient is φ = 163400323996.

The previous prime is 163400323991. The next prime is 163400324041. The reversal of 163400323997 is 799323004361.

163400323997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163039095961 + 361228036 = 403781^2 + 19006^2 .

It is a cyclic number.

It is not a de Polignac number, because 163400323997 - 2²⁸ = 163131888541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163400323991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81700161998 + 81700161999.

It is an arithmetic number, because the mean of its divisors is an integer number (81700161999).

Almost surely, 2^163400323997 is an apocalyptic number.

It is an amenable number.

163400323997 is a deficient number, since it is larger than the sum of its proper divisors (1).

163400323997 is an equidigital number, since it uses as much as digits as its factorization.

163400323997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 734832, while the sum is 47.

The spelling of 163400323997 in words is "one hundred sixty-three billion, four hundred million, three hundred twenty-three thousand, nine hundred ninety-seven".