6643434614 has 8 divisors (see below), whose sum is σ = 9976517328. Its totient is φ = 3317928840.

The previous prime is 6643434601. The next prime is 6643434661. The reversal of 6643434614 is 4164343466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 1892042 + ... + 1895549.

It is an arithmetic number, because the mean of its divisors is an integer number (1247064666).

Almost surely, 2^6643434614 is an apocalyptic number.

6643434614 is a deficient number, since it is larger than the sum of its proper divisors (3333082714).

6643434614 is a wasteful number, since it uses less digits than its factorization.

6643434614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3788470.

The product of its digits is 497664, while the sum is 41.

The square root of 6643434614 is about 81507.2672465468. The cubic root of 6643434614 is about 1879.8832934569.

The spelling of 6643434614 in words is "six billion, six hundred forty-three million, four hundred thirty-four thousand, six hundred fourteen".