163567431941 has 2 divisors, whose sum is σ = 163567431942. Its totient is φ = 163567431940.

The previous prime is 163567431913. The next prime is 163567431943. The reversal of 163567431941 is 149134765361.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136907400100 + 26660031841 = 370010^2 + 163279^2 .

It is a cyclic number.

It is not a de Polignac number, because 163567431941 - 2³⁴ = 146387562757 is a prime.

Together with 163567431943, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163567431941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163567431943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81783715970 + 81783715971.

It is an arithmetic number, because the mean of its divisors is an integer number (81783715971).

Almost surely, 2^163567431941 is an apocalyptic number.

It is an amenable number.

163567431941 is a deficient number, since it is larger than the sum of its proper divisors (1).

163567431941 is an equidigital number, since it uses as much as digits as its factorization.

163567431941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 50.

The spelling of 163567431941 in words is "one hundred sixty-three billion, five hundred sixty-seven million, four hundred thirty-one thousand, nine hundred forty-one".