112161720506 has 32 divisors (see below), whose sum is σ = 186065510400. Its totient is φ = 50281760880.

The previous prime is 112161720497. The next prime is 112161720511. The reversal of 112161720506 is 605027161211.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1562111 + ... + 1632333.

It is an arithmetic number, because the mean of its divisors is an integer number (5814547200).

Almost surely, 2^112161720506 is an apocalyptic number.

112161720506 is a deficient number, since it is larger than the sum of its proper divisors (73903789894).

112161720506 is a wasteful number, since it uses less digits than its factorization.

112161720506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71234.

The product of its (nonzero) digits is 5040, while the sum is 32.

Adding to 112161720506 its reverse (605027161211), we get a palindrome (717188881717).

The spelling of 112161720506 in words is "one hundred twelve billion, one hundred sixty-one million, seven hundred twenty thousand, five hundred six".