22000456517 has 8 divisors (see below), whose sum is σ = 25086493656. Its totient is φ = 19113518592.

The previous prime is 22000456453. The next prime is 22000456523. The reversal of 22000456517 is 71565400022.

It can be written as a sum of positive squares in 4 ways, for example, as 395572321 + 21604884196 = 19889^2 + 146986^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22000456517 - 2⁶ = 22000456453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000456567) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 49774568 + ... + 49775009.

It is an arithmetic number, because the mean of its divisors is an integer number (3135811707).

Almost surely, 2^22000456517 is an apocalyptic number.

It is an amenable number.

22000456517 is a deficient number, since it is larger than the sum of its proper divisors (3086037139).

22000456517 is a wasteful number, since it uses less digits than its factorization.

22000456517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99549607.

The product of its (nonzero) digits is 16800, while the sum is 32.

Adding to 22000456517 its reverse (71565400022), we get a palindrome (93565856539).

The spelling of 22000456517 in words is "twenty-two billion, four hundred fifty-six thousand, five hundred seventeen".