163006763989 has 2 divisors, whose sum is σ = 163006763990. Its totient is φ = 163006763988.

The previous prime is 163006763911. The next prime is 163006764017. The reversal of 163006763989 is 989367600361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122619028900 + 40387735089 = 350170^2 + 200967^2 .

It is a cyclic number.

It is not a de Polignac number, because 163006763989 - 2⁹ = 163006763477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163006763089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81503381994 + 81503381995.

It is an arithmetic number, because the mean of its divisors is an integer number (81503381995).

Almost surely, 2^163006763989 is an apocalyptic number.

It is an amenable number.

163006763989 is a deficient number, since it is larger than the sum of its proper divisors (1).

163006763989 is an equidigital number, since it uses as much as digits as its factorization.

163006763989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8817984, while the sum is 58.

The spelling of 163006763989 in words is "one hundred sixty-three billion, six million, seven hundred sixty-three thousand, nine hundred eighty-nine".