6655644472 has 32 divisors (see below), whose sum is σ = 12789730800. Its totient is φ = 3245126400.

The previous prime is 6655644469. The next prime is 6655644491. The reversal of 6655644472 is 2744465566.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040179 + ... + 1046557.

Almost surely, 2^6655644472 is an apocalyptic number.

It is an amenable number.

6655644472 is a deficient number, since it is larger than the sum of its proper divisors (6134086328).

6655644472 is a wasteful number, since it uses less digits than its factorization.

6655644472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9607 (or 9603 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 49.

The square root of 6655644472 is about 81582.1332890971. The cubic root of 6655644472 is about 1881.0342573800.

The spelling of 6655644472 in words is "six billion, six hundred fifty-five million, six hundred forty-four thousand, four hundred seventy-two".