6650605605 has 24 divisors (see below), whose sum is σ = 12378271392. Its totient is φ = 3040276512.

The previous prime is 6650605603. The next prime is 6650605607. The reversal of 6650605605 is 5065060566.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6650605603) and next prime (6650605607).

It is not a de Polignac number, because 6650605605 - 2¹ = 6650605603 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6650605601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4523487 + ... + 4524956.

It is an arithmetic number, because the mean of its divisors is an integer number (515761308).

Almost surely, 2^6650605605 is an apocalyptic number.

It is an amenable number.

6650605605 is a deficient number, since it is larger than the sum of its proper divisors (5727665787).

6650605605 is a wasteful number, since it uses less digits than its factorization.

6650605605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9048465 (or 9048458 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 6650605605 is about 81551.2452694623. The cubic root of 6650605605 is about 1880.5594386285.

The spelling of 6650605605 in words is "six billion, six hundred fifty million, six hundred five thousand, six hundred five".