11622170161 has 16 divisors (see below), whose sum is σ = 13640539264. Its totient is φ = 9694992384.

The previous prime is 11622170149. The next prime is 11622170237. The reversal of 11622170161 is 16107122611.

It is not a de Polignac number, because 11622170161 - 2⁵ = 11622170129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11622170141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13681 + ... + 153073.

It is an arithmetic number, because the mean of its divisors is an integer number (852533704).

Almost surely, 2^11622170161 is an apocalyptic number.

It is an amenable number.

11622170161 is a deficient number, since it is larger than the sum of its proper divisors (2018369103).

11622170161 is a wasteful number, since it uses less digits than its factorization.

11622170161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139720.

The product of its (nonzero) digits is 1008, while the sum is 28.

Adding to 11622170161 its reverse (16107122611), we get a palindrome (27729292772).

The spelling of 11622170161 in words is "eleven billion, six hundred twenty-two million, one hundred seventy thousand, one hundred sixty-one".