163457665907 has 2 divisors, whose sum is σ = 163457665908. Its totient is φ = 163457665906.

The previous prime is 163457665901. The next prime is 163457666017. The reversal of 163457665907 is 709566754361.

163457665907 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 163457665907 - 2¹⁸ = 163457403763 is a prime.

It is not a weakly prime, because it can be changed into another prime (163457665901) 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, 81728832953 + 81728832954.

It is an arithmetic number, because the mean of its divisors is an integer number (81728832954).

Almost surely, 2^163457665907 is an apocalyptic number.

163457665907 is a deficient number, since it is larger than the sum of its proper divisors (1).

163457665907 is an equidigital number, since it uses as much as digits as its factorization.

163457665907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28576800, while the sum is 59.

The spelling of 163457665907 in words is "one hundred sixty-three billion, four hundred fifty-seven million, six hundred sixty-five thousand, nine hundred seven".