665360485 has 8 divisors (see below), whose sum is σ = 825964920. Its totient is φ = 513933504.

The previous prime is 665360477. The next prime is 665360551. The reversal of 665360485 is 584063566.

It can be written as a sum of positive squares in 4 ways, for example, as 286591041 + 378769444 = 16929^2 + 19462^2 .

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 665360485 - 2³ = 665360477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2294202 + ... + 2294491.

It is an arithmetic number, because the mean of its divisors is an integer number (103245615).

Almost surely, 2^665360485 is an apocalyptic number.

It is an amenable number.

665360485 is a deficient number, since it is larger than the sum of its proper divisors (160604435).

665360485 is a wasteful number, since it uses less digits than its factorization.

665360485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4588727.

The product of its (nonzero) digits is 518400, while the sum is 43.

The square root of 665360485 is about 25794.5824738452. The cubic root of 665360485 is about 873.0095643303.

The spelling of 665360485 in words is "six hundred sixty-five million, three hundred sixty thousand, four hundred eighty-five".