22066506403426 has 4 divisors (see below), whose sum is σ = 33099759605142. Its totient is φ = 11033253201712.

The previous prime is 22066506403387. The next prime is 22066506403433. The reversal of 22066506403426 is 62430460566022.

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

It can be written as a sum of positive squares in only one way, i.e., 17173142114401 + 4893364289025 = 4144049^2 + 2212095^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5516626600855 + ... + 5516626600858.

Almost surely, 2^{22066506403426} is an apocalyptic number.

22066506403426 is a deficient number, since it is larger than the sum of its proper divisors (11033253201716).

22066506403426 is a wasteful number, since it uses less digits than its factorization.

22066506403426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11033253201715.

The product of its (nonzero) digits is 2488320, while the sum is 46.

Adding to 22066506403426 its reverse (62430460566022), we get a palindrome (84496966969448).

The spelling of 22066506403426 in words is "twenty-two trillion, sixty-six billion, five hundred six million, four hundred three thousand, four hundred twenty-six".