22399399161 has 6 divisors (see below), whose sum is σ = 32354687690. Its totient is φ = 14932932768.

The previous prime is 22399399097. The next prime is 22399399163. The reversal of 22399399161 is 16199399322.

22399399161 is a `hidden beast` number, since 2 + 2 + 3 + 99 + 399 + 161 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11565711936 + 10833687225 = 107544^2 + 104085^2 .

It is not a de Polignac number, because 22399399161 - 2⁶ = 22399399097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22399399098 and 22399399107.

It is not an unprimeable number, because it can be changed into a prime (22399399163) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1244411056 + ... + 1244411073.

Almost surely, 2^22399399161 is an apocalyptic number.

It is an amenable number.

22399399161 is a deficient number, since it is larger than the sum of its proper divisors (9955288529).

22399399161 is a wasteful number, since it uses less digits than its factorization.

22399399161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2488822135 (or 2488822132 counting only the distinct ones).

The product of its digits is 1417176, while the sum is 54.

The spelling of 22399399161 in words is "twenty-two billion, three hundred ninety-nine million, three hundred ninety-nine thousand, one hundred sixty-one".