665675365 has 8 divisors (see below), whose sum is σ = 799925760. Its totient is φ = 531796752.

The previous prime is 665675363. The next prime is 665675419. The reversal of 665675365 is 563576566.

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 665675365 - 2¹ = 665675363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (665675363) by changing a digit.

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, 88989 + ... + 96178.

It is an arithmetic number, because the mean of its divisors is an integer number (99990720).

Almost surely, 2^665675365 is an apocalyptic number.

It is an amenable number.

665675365 is a deficient number, since it is larger than the sum of its proper divisors (134250395).

665675365 is a wasteful number, since it uses less digits than its factorization.

665675365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185891.

The product of its digits is 3402000, while the sum is 49.

The square root of 665675365 is about 25800.6853591140. The cubic root of 665675365 is about 873.1472590612.

The spelling of 665675365 in words is "six hundred sixty-five million, six hundred seventy-five thousand, three hundred sixty-five".