22446809645 has 8 divisors (see below), whose sum is σ = 29008184856. Its totient is φ = 16576105536.

The previous prime is 22446809633. The next prime is 22446809669. The reversal of 22446809645 is 54690864422.

It can be written as a sum of positive squares in 4 ways, for example, as 4037204521 + 18409605124 = 63539^2 + 135682^2 .

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 22446809645 - 2¹⁰ = 22446808621 is a prime.

It is a super-3 number, since 3×22446809645³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22446809593 and 22446809602.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 172667702 + ... + 172667831.

It is an arithmetic number, because the mean of its divisors is an integer number (3626023107).

Almost surely, 2^22446809645 is an apocalyptic number.

It is an amenable number.

22446809645 is a deficient number, since it is larger than the sum of its proper divisors (6561375211).

22446809645 is a wasteful number, since it uses less digits than its factorization.

22446809645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345335551.

The product of its (nonzero) digits is 3317760, while the sum is 50.

The spelling of 22446809645 in words is "twenty-two billion, four hundred forty-six million, eight hundred nine thousand, six hundred forty-five".