163438204583 has 2 divisors, whose sum is σ = 163438204584. Its totient is φ = 163438204582.

The previous prime is 163438204541. The next prime is 163438204591. The reversal of 163438204583 is 385402834361.

163438204583 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163438204583 - 2²⁰ = 163437156007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163438204483) 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, 81719102291 + 81719102292.

It is an arithmetic number, because the mean of its divisors is an integer number (81719102292).

Almost surely, 2^163438204583 is an apocalyptic number.

163438204583 is a deficient number, since it is larger than the sum of its proper divisors (1).

163438204583 is an equidigital number, since it uses as much as digits as its factorization.

163438204583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1658880, while the sum is 47.

The spelling of 163438204583 in words is "one hundred sixty-three billion, four hundred thirty-eight million, two hundred four thousand, five hundred eighty-three".