163390607987 has 2 divisors, whose sum is σ = 163390607988. Its totient is φ = 163390607986.

The previous prime is 163390607923. The next prime is 163390608077. The reversal of 163390607987 is 789706093361.

163390607987 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 an emirp because it is prime and its reverse (789706093361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163390607987 - 2⁶ = 163390607923 is a prime.

It is not a weakly prime, because it can be changed into another prime (163390607287) 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, 81695303993 + 81695303994.

It is an arithmetic number, because the mean of its divisors is an integer number (81695303994).

Almost surely, 2^163390607987 is an apocalyptic number.

163390607987 is a deficient number, since it is larger than the sum of its proper divisors (1).

163390607987 is an equidigital number, since it uses as much as digits as its factorization.

163390607987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10287648, while the sum is 59.

The spelling of 163390607987 in words is "one hundred sixty-three billion, three hundred ninety million, six hundred seven thousand, nine hundred eighty-seven".