605052666 has 20 divisors (see below), whose sum is σ = 1355766522. Its totient is φ = 201684168.

The previous prime is 605052659. The next prime is 605052671. The reversal of 605052666 is 666250506.

It can be written as a sum of positive squares in only one way, i.e., 376166025 + 228886641 = 19395^2 + 15129^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 605052666.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1867285 + ... + 1867608.

Almost surely, 2^605052666 is an apocalyptic number.

605052666 is an abundant number, since it is smaller than the sum of its proper divisors (750713856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

605052666 is a wasteful number, since it uses less digits than its factorization.

605052666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3734907 (or 3734898 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 605052666 is about 24597.8183178915. The cubic root of 605052666 is about 845.7935968477.

The spelling of 605052666 in words is "six hundred five million, fifty-two thousand, six hundred sixty-six".