6606642404 has 12 divisors (see below), whose sum is σ = 11572823724. Its totient is φ = 3300121344.

The previous prime is 6606642403. The next prime is 6606642451. The reversal of 6606642404 is 4042466066.

It can be written as a sum of positive squares in 2 ways, for example, as 4257301504 + 2349340900 = 65248^2 + 48470^2 .

It is not an unprimeable number, because it can be changed into a prime (6606642403) 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, 795317 + ... + 803580.

It is an arithmetic number, because the mean of its divisors is an integer number (964401977).

Almost surely, 2^6606642404 is an apocalyptic number.

It is an amenable number.

6606642404 is a deficient number, since it is larger than the sum of its proper divisors (4966181320).

6606642404 is a wasteful number, since it uses less digits than its factorization.

6606642404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599934 (or 1599932 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 38.

The square root of 6606642404 is about 81281.2549361782. The cubic root of 6606642404 is about 1876.4065207255.

The spelling of 6606642404 in words is "six billion, six hundred six million, six hundred forty-two thousand, four hundred four".