5228643665 has 8 divisors (see below), whose sum is σ = 7170711360. Its totient is φ = 3585355632.

The previous prime is 5228643647. The next prime is 5228643683. The reversal of 5228643665 is 5663468225.

It is an interprime number because it is at equal distance from previous prime (5228643647) and next prime (5228643683).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5228643665 is a prime.

It is an unprimeable number.

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, 74694875 + ... + 74694944.

It is an arithmetic number, because the mean of its divisors is an integer number (896338920).

Almost surely, 2^5228643665 is an apocalyptic number.

It is an amenable number.

5228643665 is a deficient number, since it is larger than the sum of its proper divisors (1942067695).

5228643665 is a wasteful number, since it uses less digits than its factorization.

5228643665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149389831.

The product of its digits is 2073600, while the sum is 47.

The square root of 5228643665 is about 72309.3608393823. The cubic root of 5228643665 is about 1735.6534469708.

The spelling of 5228643665 in words is "five billion, two hundred twenty-eight million, six hundred forty-three thousand, six hundred sixty-five".