112161720507 has 8 divisors (see below), whose sum is σ = 149625699600. Its totient is φ = 74736110880.

The previous prime is 112161720497. The next prime is 112161720511. The reversal of 112161720507 is 705027161211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-112161720507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (112161720547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9585544 + ... + 9597237.

It is an arithmetic number, because the mean of its divisors is an integer number (18703212450).

Almost surely, 2^112161720507 is an apocalyptic number.

112161720507 is a deficient number, since it is larger than the sum of its proper divisors (37463979093).

112161720507 is a wasteful number, since it uses less digits than its factorization.

112161720507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19184733.

The product of its (nonzero) digits is 5880, while the sum is 33.

Adding to 112161720507 its reverse (705027161211), we get a palindrome (817188881718).

The spelling of 112161720507 in words is "one hundred twelve billion, one hundred sixty-one million, seven hundred twenty thousand, five hundred seven".