6664544315 has 16 divisors (see below), whose sum is σ = 9395610336. Its totient is φ = 4474099200.

The previous prime is 6664544297. The next prime is 6664544429. The reversal of 6664544315 is 5134454666.

It is not a de Polignac number, because 6664544315 - 2¹² = 6664540219 is a prime.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 4659806 + ... + 4661235.

It is an arithmetic number, because the mean of its divisors is an integer number (587225646).

Almost surely, 2^6664544315 is an apocalyptic number.

6664544315 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6664544315 is a deficient number, since it is larger than the sum of its proper divisors (2731066021).

6664544315 is a wasteful number, since it uses less digits than its factorization.

6664544315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9321070.

The product of its digits is 1036800, while the sum is 44.

The square root of 6664544315 is about 81636.6603616292. The cubic root of 6664544315 is about 1881.8723156260.

The spelling of 6664544315 in words is "six billion, six hundred sixty-four million, five hundred forty-four thousand, three hundred fifteen".