163641136223 has 4 divisors (see below), whose sum is σ = 163673915328. Its totient is φ = 163608357120.

The previous prime is 163641136187. The next prime is 163641136237. The reversal of 163641136223 is 322631146361.

163641136223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322631146361 = 30631 ⋅10532831.

It is a cyclic number.

It is not a de Polignac number, because 163641136223 - 2⁶ = 163641136159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163641136123) 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 in 3 ways as a sum of consecutive naturals, for example, 16382063 + ... + 16392048.

It is an arithmetic number, because the mean of its divisors is an integer number (40918478832).

Almost surely, 2^163641136223 is an apocalyptic number.

163641136223 is a deficient number, since it is larger than the sum of its proper divisors (32779105).

163641136223 is an equidigital number, since it uses as much as digits as its factorization.

163641136223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32779104.

The product of its digits is 93312, while the sum is 38.

The spelling of 163641136223 in words is "one hundred sixty-three billion, six hundred forty-one million, one hundred thirty-six thousand, two hundred twenty-three".