605631668 has 12 divisors (see below), whose sum is σ = 1077230532. Its totient is φ = 297851520.

The previous prime is 605631667. The next prime is 605631671. The reversal of 605631668 is 866136506.

It can be written as a sum of positive squares in 2 ways, for example, as 156700324 + 448931344 = 12518^2 + 21188^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605631667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1240805 + ... + 1241292.

It is an arithmetic number, because the mean of its divisors is an integer number (89769211).

Almost surely, 2^605631668 is an apocalyptic number.

It is an amenable number.

605631668 is a deficient number, since it is larger than the sum of its proper divisors (471598864).

605631668 is a wasteful number, since it uses less digits than its factorization.

605631668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2482162 (or 2482160 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 605631668 is about 24609.5848806923. The cubic root of 605631668 is about 846.0633034282.

The spelling of 605631668 in words is "six hundred five million, six hundred thirty-one thousand, six hundred sixty-eight".