163513073522 has 54 divisors (see below), whose sum is σ = 263212729479. Its totient is φ = 76172018400.

The previous prime is 163513073501. The next prime is 163513073527. The reversal of 163513073522 is 225370315361.

163513073522 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 105918353401 + 57594720121 = 325451^2 + 239989^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=285931.

It is a super-2 number, since 2×163513073522² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163513073527) 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 in 26 ways as a sum of consecutive naturals, for example, 1097403104 + ... + 1097403252.

Almost surely, 2^163513073522 is an apocalyptic number.

163513073522 is a deficient number, since it is larger than the sum of its proper divisors (99699655957).

163513073522 is an equidigital number, since it uses as much as digits as its factorization.

163513073522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 38.

Adding to 163513073522 its reverse (225370315361), we get a palindrome (388883388883).

The spelling of 163513073522 in words is "one hundred sixty-three billion, five hundred thirteen million, seventy-three thousand, five hundred twenty-two".