22281066449 has 8 divisors (see below), whose sum is σ = 23008915200. Its totient is φ = 21553786800.

The previous prime is 22281066443. The next prime is 22281066461. The reversal of 22281066449 is 94466018222.

It is a happy number.

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 22281066449 - 2¹⁶ = 22281000913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22281066443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61967 + ... + 220004.

It is an arithmetic number, because the mean of its divisors is an integer number (2876114400).

Almost surely, 2^22281066449 is an apocalyptic number.

It is an amenable number.

22281066449 is a deficient number, since it is larger than the sum of its proper divisors (727848751).

22281066449 is a wasteful number, since it uses less digits than its factorization.

22281066449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284551.

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 22281066449 in words is "twenty-two billion, two hundred eighty-one million, sixty-six thousand, four hundred forty-nine".