163245487169 has 2 divisors, whose sum is σ = 163245487170. Its totient is φ = 163245487168.

The previous prime is 163245487063. The next prime is 163245487201. The reversal of 163245487169 is 961784542361.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152968596544 + 10276890625 = 391112^2 + 101375^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163245487169 is a prime.

It is a super-2 number, since 2×163245487169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (163245487469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81622743584 + 81622743585.

It is an arithmetic number, because the mean of its divisors is an integer number (81622743585).

Almost surely, 2^163245487169 is an apocalyptic number.

It is an amenable number.

163245487169 is a deficient number, since it is larger than the sum of its proper divisors (1).

163245487169 is an equidigital number, since it uses as much as digits as its factorization.

163245487169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 56.

The spelling of 163245487169 in words is "one hundred sixty-three billion, two hundred forty-five million, four hundred eighty-seven thousand, one hundred sixty-nine".