6605637628 has 12 divisors (see below), whose sum is σ = 12062468880. Its totient is φ = 3159217952.

The previous prime is 6605637613. The next prime is 6605637631. The reversal of 6605637628 is 8267365066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35900113 + ... + 35900296.

It is an arithmetic number, because the mean of its divisors is an integer number (1005205740).

Almost surely, 2^6605637628 is an apocalyptic number.

It is an amenable number.

6605637628 is a deficient number, since it is larger than the sum of its proper divisors (5456831252).

6605637628 is a wasteful number, since it uses less digits than its factorization.

6605637628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71800436 (or 71800434 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 49.

The square root of 6605637628 is about 81275.0738418613. The cubic root of 6605637628 is about 1876.3113910207.

It can be divided in two parts, 66056 and 37628, that added together give a square (103684 = 322²).

The spelling of 6605637628 in words is "six billion, six hundred five million, six hundred thirty-seven thousand, six hundred twenty-eight".