4223818661 has 8 divisors (see below), whose sum is σ = 4293569280. Its totient is φ = 4154475312.

The previous prime is 4223818637. The next prime is 4223818681. The reversal of 4223818661 is 1668183224.

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 4223818661 - 2³⁰ = 3150076837 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 (4223818631) 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 7 ways as a sum of consecutive naturals, for example, 80870 + ... + 122423.

It is an arithmetic number, because the mean of its divisors is an integer number (536696160).

Almost surely, 2^4223818661 is an apocalyptic number.

It is an amenable number.

4223818661 is a deficient number, since it is larger than the sum of its proper divisors (69750619).

4223818661 is a wasteful number, since it uses less digits than its factorization.

4223818661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203635.

The product of its digits is 110592, while the sum is 41.

The square root of 4223818661 is about 64990.9121416218. The cubic root of 4223818661 is about 1616.4728755181.

The spelling of 4223818661 in words is "four billion, two hundred twenty-three million, eight hundred eighteen thousand, six hundred sixty-one".