665602466 has 8 divisors (see below), whose sum is σ = 1012080684. Its totient is φ = 328242240.

The previous prime is 665602459. The next prime is 665602477. The reversal of 665602466 is 664206566.

It can be written as a sum of positive squares in 2 ways, for example, as 591900241 + 73702225 = 24329^2 + 8585^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2279315 + ... + 2279606.

Almost surely, 2^665602466 is an apocalyptic number.

665602466 is a deficient number, since it is larger than the sum of its proper divisors (346478218).

665602466 is a wasteful number, since it uses less digits than its factorization.

665602466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4558996.

The product of its (nonzero) digits is 311040, while the sum is 41.

The square root of 665602466 is about 25799.2725866448. The cubic root of 665602466 is about 873.1153847227.

The spelling of 665602466 in words is "six hundred sixty-five million, six hundred two thousand, four hundred sixty-six".