163245897369 has 15 divisors (see below), whose sum is σ = 243866587503. Its totient is φ = 108828174024.

The previous prime is 163245897349. The next prime is 163245897389. The reversal of 163245897369 is 963798542361.

The square root of 163245897369 is 404037.

It is a perfect power (a square), and thus also a powerful number.

163245897369 is a `hidden beast` number, since 1 + 6 + 32 + 458 + 97 + 3 + 69 = 666.

It is an interprime number because it is at equal distance from previous prime (163245897349) and next prime (163245897389).

It can be written as a sum of positive squares in only one way, i.e., 86744975625 + 76500921744 = 294525^2 + 276588^2 .

It is not a de Polignac number, because 163245897369 - 2⁹ = 163245896857 is a prime.

It is a super-2 number, since 2×163245897369² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163245897349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 3613887 + ... + 3658779.

Almost surely, 2^163245897369 is an apocalyptic number.

163245897369 is the 404037-th square number.

163245897369 is the 202019-th centered octagonal number.

It is an amenable number.

163245897369 is a deficient number, since it is larger than the sum of its proper divisors (80620690134).

163245897369 is an frugal number, since it uses more digits than its factorization.

163245897369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89798 (or 44896 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 63.

The spelling of 163245897369 in words is "one hundred sixty-three billion, two hundred forty-five million, eight hundred ninety-seven thousand, three hundred sixty-nine".