163506210614231 has 2 divisors, whose sum is σ = 163506210614232. Its totient is φ = 163506210614230.

The previous prime is 163506210614189. The next prime is 163506210614233. The reversal of 163506210614231 is 132416012605361.

163506210614231 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 163506210614231 - 2¹⁸ = 163506210352087 is a prime.

It is a super-2 number, since 2×163506210614231² (a number of 29 digits) contains 22 as substring.

Together with 163506210614233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163506210614233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81753105307115 + 81753105307116.

It is an arithmetic number, because the mean of its divisors is an integer number (81753105307116).

Almost surely, 2^{163506210614231} is an apocalyptic number.

163506210614231 is a deficient number, since it is larger than the sum of its proper divisors (1).

163506210614231 is an equidigital number, since it uses as much as digits as its factorization.

163506210614231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 163506210614231 in words is "one hundred sixty-three trillion, five hundred six billion, two hundred ten million, six hundred fourteen thousand, two hundred thirty-one".