163020558247 has 2 divisors, whose sum is σ = 163020558248. Its totient is φ = 163020558246.

The previous prime is 163020558229. The next prime is 163020558317. The reversal of 163020558247 is 742855020361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163020558247 - 2¹⁹ = 163020033959 is a prime.

It is a super-2 number, since 2×163020558247² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163020556247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81510279123 + 81510279124.

It is an arithmetic number, because the mean of its divisors is an integer number (81510279124).

Almost surely, 2^163020558247 is an apocalyptic number.

163020558247 is a deficient number, since it is larger than the sum of its proper divisors (1).

163020558247 is an equidigital number, since it uses as much as digits as its factorization.

163020558247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 403200, while the sum is 43.

The spelling of 163020558247 in words is "one hundred sixty-three billion, twenty million, five hundred fifty-eight thousand, two hundred forty-seven".