163312145389 has 2 divisors, whose sum is σ = 163312145390. Its totient is φ = 163312145388.

The previous prime is 163312145377. The next prime is 163312145393. The reversal of 163312145389 is 983541213361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160847519364 + 2464626025 = 401058^2 + 49645^2 .

It is a cyclic number.

It is not a de Polignac number, because 163312145389 - 2⁷ = 163312145261 is a prime.

It is a super-2 number, since 2×163312145389² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163312145309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81656072694 + 81656072695.

It is an arithmetic number, because the mean of its divisors is an integer number (81656072695).

Almost surely, 2^163312145389 is an apocalyptic number.

It is an amenable number.

163312145389 is a deficient number, since it is larger than the sum of its proper divisors (1).

163312145389 is an equidigital number, since it uses as much as digits as its factorization.

163312145389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 46.

The spelling of 163312145389 in words is "one hundred sixty-three billion, three hundred twelve million, one hundred forty-five thousand, three hundred eighty-nine".