112208161538 has 54 divisors (see below), whose sum is σ = 188621276571. Its totient is φ = 50025465600.

The previous prime is 112208161529. The next prime is 112208161567. The reversal of 112208161538 is 835161802211.

It can be written as a sum of positive squares in 5 ways, for example, as 847799689 + 111360361849 = 29117^2 + 333707^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=236863.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 317869970 + ... + 317870322.

Almost surely, 2^112208161538 is an apocalyptic number.

112208161538 is a deficient number, since it is larger than the sum of its proper divisors (76413115033).

112208161538 is an frugal number, since it uses more digits than its factorization.

112208161538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 38.

Adding to 112208161538 its reverse (835161802211), we get a palindrome (947369963749).

The spelling of 112208161538 in words is "one hundred twelve billion, two hundred eight million, one hundred sixty-one thousand, five hundred thirty-eight".