22160031351641 has 4 divisors (see below), whose sum is σ = 22160209965492. Its totient is φ = 22159852737792.

The previous prime is 22160031351629. The next prime is 22160031351649. The reversal of 22160031351641 is 14615313006122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2839646265625 + 19320385086016 = 1685125^2 + 4395496^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22160031351641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22160031351649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89120696 + ... + 89369001.

It is an arithmetic number, because the mean of its divisors is an integer number (5540052491373).

Almost surely, 2^{22160031351641} is an apocalyptic number.

It is an amenable number.

22160031351641 is a deficient number, since it is larger than the sum of its proper divisors (178613851).

22160031351641 is a wasteful number, since it uses less digits than its factorization.

22160031351641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178613850.

The product of its (nonzero) digits is 25920, while the sum is 35.

Adding to 22160031351641 its reverse (14615313006122), we get a palindrome (36775344357763).

The spelling of 22160031351641 in words is "twenty-two trillion, one hundred sixty billion, thirty-one million, three hundred fifty-one thousand, six hundred forty-one".