6654631646 has 16 divisors (see below), whose sum is σ = 10775341248. Its totient is φ = 3064068000.

The previous prime is 6654631639. The next prime is 6654631663. The reversal of 6654631646 is 6461364566.

It is a self number, because there is not a number n which added to its sum of digits gives 6654631646.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293030 + ... + 314921.

It is an arithmetic number, because the mean of its divisors is an integer number (673458828).

Almost surely, 2^6654631646 is an apocalyptic number.

6654631646 is a deficient number, since it is larger than the sum of its proper divisors (4120709602).

6654631646 is a wasteful number, since it uses less digits than its factorization.

6654631646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608387.

The product of its digits is 1866240, while the sum is 47.

The square root of 6654631646 is about 81575.9256521187. The cubic root of 6654631646 is about 1880.9388367658.

The spelling of 6654631646 in words is "six billion, six hundred fifty-four million, six hundred thirty-one thousand, six hundred forty-six".