655665606 has 12 divisors (see below), whose sum is σ = 1420608852. Its totient is φ = 218555196.

The previous prime is 655665601. The next prime is 655665631. The reversal of 655665606 is 606566556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655665601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18212916 + ... + 18212951.

It is an arithmetic number, because the mean of its divisors is an integer number (118384071).

Almost surely, 2^655665606 is an apocalyptic number.

655665606 is an abundant number, since it is smaller than the sum of its proper divisors (764943246).

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

655665606 is a wasteful number, since it uses less digits than its factorization.

655665606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36425875 (or 36425872 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 45.

The square root of 655665606 is about 25605.9681715025. The cubic root of 655665606 is about 868.7486329810.

The spelling of 655665606 in words is "six hundred fifty-five million, six hundred sixty-five thousand, six hundred six".