112400164161 has 8 divisors (see below), whose sum is σ = 166518761760. Its totient is φ = 74933442756.

The previous prime is 112400164139. The next prime is 112400164189. The reversal of 112400164161 is 161461004211.

112400164161 is a `hidden beast` number, since 1 + 1 + 240 + 0 + 1 + 6 + 416 + 1 = 666.

It is not a de Polignac number, because 112400164161 - 2¹⁰ = 112400163137 is a prime.

It is a super-3 number, since 3×112400164161³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4162969043 = 112400164161 / (1 + 1 + 2 + 4 + 0 + 0 + 1 + 6 + 4 + 1 + 6 + 1).

It is not an unprimeable number, because it can be changed into a prime (112400164361) 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, 2081484495 + ... + 2081484548.

It is an arithmetic number, because the mean of its divisors is an integer number (20814845220).

Almost surely, 2^112400164161 is an apocalyptic number.

It is an amenable number.

112400164161 is a deficient number, since it is larger than the sum of its proper divisors (54118597599).

112400164161 is an equidigital number, since it uses as much as digits as its factorization.

112400164161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4162969052 (or 4162969046 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

Adding to 112400164161 its reverse (161461004211), we get a palindrome (273861168372).

The spelling of 112400164161 in words is "one hundred twelve billion, four hundred million, one hundred sixty-four thousand, one hundred sixty-one".