22066172010305 has 4 divisors (see below), whose sum is σ = 26479406412372. Its totient is φ = 17652937608240.

The previous prime is 22066172010269. The next prime is 22066172010319. The reversal of 22066172010305 is 50301027166022.

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 2572075005361 + 19494097004944 = 1603769^2 + 4415212^2 .

It is not a de Polignac number, because 22066172010305 - 2¹⁶ = 22066171944769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2206617201026 + ... + 2206617201035.

It is an arithmetic number, because the mean of its divisors is an integer number (6619851603093).

Almost surely, 2^{22066172010305} is an apocalyptic number.

It is an amenable number.

22066172010305 is a deficient number, since it is larger than the sum of its proper divisors (4413234402067).

22066172010305 is an equidigital number, since it uses as much as digits as its factorization.

22066172010305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4413234402066.

The product of its (nonzero) digits is 30240, while the sum is 35.

Adding to 22066172010305 its reverse (50301027166022), we get a palindrome (72367199176327).

The spelling of 22066172010305 in words is "twenty-two trillion, sixty-six billion, one hundred seventy-two million, ten thousand, three hundred five".