163583859578647 has 2 divisors, whose sum is σ = 163583859578648. Its totient is φ = 163583859578646.

The previous prime is 163583859578593. The next prime is 163583859578669. The reversal of 163583859578647 is 746875958385361.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163583859578647 is a prime.

It is a super-2 number, since 2×163583859578647² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163583859678647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81791929789323 + 81791929789324.

It is an arithmetic number, because the mean of its divisors is an integer number (81791929789324).

Almost surely, 2^{163583859578647} is an apocalyptic number.

163583859578647 is a deficient number, since it is larger than the sum of its proper divisors (1).

163583859578647 is an equidigital number, since it uses as much as digits as its factorization.

163583859578647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36578304000, while the sum is 85.

The spelling of 163583859578647 in words is "one hundred sixty-three trillion, five hundred eighty-three billion, eight hundred fifty-nine million, five hundred seventy-eight thousand, six hundred forty-seven".