6604651211 has 4 divisors (see below), whose sum is σ = 6605053752. Its totient is φ = 6604248672.

The previous prime is 6604651201. The next prime is 6604651241. The reversal of 6604651211 is 1121564066.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6604651211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6604651201) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 175565 + ... + 209838.

It is an arithmetic number, because the mean of its divisors is an integer number (1651263438).

Almost surely, 2^6604651211 is an apocalyptic number.

6604651211 is a deficient number, since it is larger than the sum of its proper divisors (402541).

6604651211 is a wasteful number, since it uses less digits than its factorization.

6604651211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402540.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 6604651211 is about 81269.0052295462. The cubic root of 6604651211 is about 1876.2179901161.

The spelling of 6604651211 in words is "six billion, six hundred four million, six hundred fifty-one thousand, two hundred eleven".