4223328561 has 12 divisors (see below), whose sum is σ = 6102097092. Its totient is φ = 2814752256.

The previous prime is 4223328511. The next prime is 4223328583. The reversal of 4223328561 is 1658233224.

4223328561 is a `hidden beast` number, since 42 + 2 + 33 + 28 + 561 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 945193536 + 3278135025 = 30744^2 + 57255^2 .

It is not a de Polignac number, because 4223328561 - 2²⁵ = 4189774129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4223328511) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 32316 + ... + 97421.

It is an arithmetic number, because the mean of its divisors is an integer number (508508091).

Almost surely, 2^4223328561 is an apocalyptic number.

It is an amenable number.

4223328561 is a deficient number, since it is larger than the sum of its proper divisors (1878768531).

4223328561 is a wasteful number, since it uses less digits than its factorization.

4223328561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133360 (or 133357 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 4223328561 is about 64987.1415050701. The cubic root of 4223328561 is about 1616.4103520006.

The spelling of 4223328561 in words is "four billion, two hundred twenty-three million, three hundred twenty-eight thousand, five hundred sixty-one".