6664544314 has 4 divisors (see below), whose sum is σ = 9996816474. Its totient is φ = 3332272156.

The previous prime is 6664544297. The next prime is 6664544429. The reversal of 6664544314 is 4134454666.

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

It can be written as a sum of positive squares in only one way, i.e., 6555655089 + 108889225 = 80967^2 + 10435^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1666136077 + ... + 1666136080.

Almost surely, 2^6664544314 is an apocalyptic number.

6664544314 is a deficient number, since it is larger than the sum of its proper divisors (3332272160).

6664544314 is a wasteful number, since it uses less digits than its factorization.

6664544314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332272159.

The product of its digits is 829440, while the sum is 43.

The square root of 6664544314 is about 81636.6603555045. The cubic root of 6664544314 is about 1881.8723155319.

The spelling of 6664544314 in words is "six billion, six hundred sixty-four million, five hundred forty-four thousand, three hundred fourteen".