665228384315 has 8 divisors (see below), whose sum is σ = 870844430448. Its totient is φ = 483802461280.

The previous prime is 665228384311. The next prime is 665228384323. The reversal of 665228384315 is 513483822566.

It is a happy number.

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

It is not a de Polignac number, because 665228384315 - 2² = 665228384311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (665228384311) 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, 6047530712 + ... + 6047530821.

It is an arithmetic number, because the mean of its divisors is an integer number (108855553806).

Almost surely, 2^665228384315 is an apocalyptic number.

665228384315 is a deficient number, since it is larger than the sum of its proper divisors (205616046133).

665228384315 is a wasteful number, since it uses less digits than its factorization.

665228384315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12095061549.

The product of its digits is 8294400, while the sum is 53.

The spelling of 665228384315 in words is "six hundred sixty-five billion, two hundred twenty-eight million, three hundred eighty-four thousand, three hundred fifteen".