9161822228 has 24 divisors (see below), whose sum is σ = 17292697800. Its totient is φ = 4222120320.

The previous prime is 9161822209. The next prime is 9161822233. The reversal of 9161822228 is 8222281619.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1265367184 + 7896455044 = 35572^2 + 88862^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98903 + ... + 167646.

It is an arithmetic number, because the mean of its divisors is an integer number (720529075).

Almost surely, 2^9161822228 is an apocalyptic number.

It is an amenable number.

9161822228 is a deficient number, since it is larger than the sum of its proper divisors (8130875572).

9161822228 is a wasteful number, since it uses less digits than its factorization.

9161822228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267227 (or 267225 counting only the distinct ones).

The product of its digits is 55296, while the sum is 41.

The square root of 9161822228 is about 95717.4081763605. The cubic root of 9161822228 is about 2092.4766491868.

The spelling of 9161822228 in words is "nine billion, one hundred sixty-one million, eight hundred twenty-two thousand, two hundred twenty-eight".