163390608077 has 2 divisors, whose sum is σ = 163390608078. Its totient is φ = 163390608076.

The previous prime is 163390607987. The next prime is 163390608079. The reversal of 163390608077 is 770806093361.

163390608077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119781056836 + 43609551241 = 346094^2 + 208829^2 .

It is a cyclic number.

It is not a de Polignac number, because 163390608077 - 2²⁸ = 163122172621 is a prime.

Together with 163390608079, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163390608079) 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, 81695304038 + 81695304039.

It is an arithmetic number, because the mean of its divisors is an integer number (81695304039).

Almost surely, 2^163390608077 is an apocalyptic number.

It is an amenable number.

163390608077 is a deficient number, since it is larger than the sum of its proper divisors (1).

163390608077 is an equidigital number, since it uses as much as digits as its factorization.

163390608077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 163390608077 in words is "one hundred sixty-three billion, three hundred ninety million, six hundred eight thousand, seventy-seven".