163241990939 has 2 divisors, whose sum is σ = 163241990940. Its totient is φ = 163241990938.

The previous prime is 163241990921. The next prime is 163241990963. The reversal of 163241990939 is 939099142361.

163241990939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163241990939 - 2³² = 158947023643 is a prime.

It is not a weakly prime, because it can be changed into another prime (163241990999) 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 as a sum of consecutive naturals, namely, 81620995469 + 81620995470.

It is an arithmetic number, because the mean of its divisors is an integer number (81620995470).

Almost surely, 2^163241990939 is an apocalyptic number.

163241990939 is a deficient number, since it is larger than the sum of its proper divisors (1).

163241990939 is an equidigital number, since it uses as much as digits as its factorization.

163241990939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2834352, while the sum is 56.

The spelling of 163241990939 in words is "one hundred sixty-three billion, two hundred forty-one million, nine hundred ninety thousand, nine hundred thirty-nine".