6646001132 has 12 divisors (see below), whose sum is σ = 11640442296. Its totient is φ = 3320160480.

The previous prime is 6646001107. The next prime is 6646001143. The reversal of 6646001132 is 2311006466.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6646001095 and 6646001104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 704753 + ... + 714120.

It is an arithmetic number, because the mean of its divisors is an integer number (970036858).

Almost surely, 2^6646001132 is an apocalyptic number.

It is an amenable number.

6646001132 is a deficient number, since it is larger than the sum of its proper divisors (4994441164).

6646001132 is a wasteful number, since it uses less digits than its factorization.

6646001132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1420048 (or 1420046 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 6646001132 is about 81523.0098315807. The cubic root of 6646001132 is about 1880.1253436121.

Adding to 6646001132 its reverse (2311006466), we get a palindrome (8957007598).

The spelling of 6646001132 in words is "six billion, six hundred forty-six million, one thousand, one hundred thirty-two".