664342144514 has 16 divisors (see below), whose sum is σ = 1002950816640. Its totient is φ = 330026523120.

The previous prime is 664342144489. The next prime is 664342144549. The reversal of 664342144514 is 415441243466.

It is a happy number.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 685799 + ... + 1341269.

It is an arithmetic number, because the mean of its divisors is an integer number (62684426040).

Almost surely, 2^664342144514 is an apocalyptic number.

664342144514 is a deficient number, since it is larger than the sum of its proper divisors (338608672126).

664342144514 is a wasteful number, since it uses less digits than its factorization.

664342144514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658745.

The product of its digits is 1105920, while the sum is 44.

The spelling of 664342144514 in words is "six hundred sixty-four billion, three hundred forty-two million, one hundred forty-four thousand, five hundred fourteen".