6646006467 has 6 divisors (see below), whose sum is σ = 9599787132. Its totient is φ = 4430670972.

The previous prime is 6646006463. The next prime is 6646006483. The reversal of 6646006467 is 7646006466.

It is not a de Polignac number, because 6646006467 - 2² = 6646006463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6646006463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 369222573 + ... + 369222590.

It is an arithmetic number, because the mean of its divisors is an integer number (1599964522).

Almost surely, 2^6646006467 is an apocalyptic number.

6646006467 is a deficient number, since it is larger than the sum of its proper divisors (2953780665).

6646006467 is a wasteful number, since it uses less digits than its factorization.

6646006467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738445169 (or 738445166 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The square root of 6646006467 is about 81523.0425523974. The cubic root of 6646006467 is about 1880.1258466949.

Subtracting 6646006467 from its reverse (7646006466), we obtain a palindrome (999999999).

The spelling of 6646006467 in words is "six billion, six hundred forty-six million, six thousand, four hundred sixty-seven".