22170938945 has 8 divisors (see below), whose sum is σ = 26611002600. Its totient is φ = 17732833920.

The previous prime is 22170938921. The next prime is 22170938953. The reversal of 22170938945 is 54983907122.

It can be written as a sum of positive squares in 4 ways, for example, as 421768369 + 21749170576 = 20537^2 + 147476^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22170938945 - 2¹⁴ = 22170922561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22170938893 and 22170938902.

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, 464636 + ... + 510125.

It is an arithmetic number, because the mean of its divisors is an integer number (3326375325).

Almost surely, 2^22170938945 is an apocalyptic number.

It is an amenable number.

22170938945 is a deficient number, since it is larger than the sum of its proper divisors (4440063655).

22170938945 is an equidigital number, since it uses as much as digits as its factorization.

22170938945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979315.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 22170938945 in words is "twenty-two billion, one hundred seventy million, nine hundred thirty-eight thousand, nine hundred forty-five".