605566005666 has 32 divisors (see below), whose sum is σ = 1215269285568. Its totient is φ = 201166701120.

The previous prime is 605566005661. The next prime is 605566005677. The reversal of 605566005666 is 666500665506.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (605566005661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2561796 + ... + 2788176.

It is an arithmetic number, because the mean of its divisors is an integer number (37977165174).

Almost surely, 2^605566005666 is an apocalyptic number.

605566005666 is an abundant number, since it is smaller than the sum of its proper divisors (609703279902).

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

605566005666 is a wasteful number, since it uses less digits than its factorization.

605566005666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227906.

The product of its (nonzero) digits is 5832000, while the sum is 51.

The spelling of 605566005666 in words is "six hundred five billion, five hundred sixty-six million, five thousand, six hundred sixty-six".