6664820327 has 8 divisors (see below), whose sum is σ = 7273373952. Its totient is φ = 6056710200.

The previous prime is 6664820317. The next prime is 6664820353. The reversal of 6664820327 is 7230284666.

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

It is a cyclic number.

It is not a de Polignac number, because 6664820327 - 2¹⁰ = 6664819303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6664820317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79049 + ... + 139922.

It is an arithmetic number, because the mean of its divisors is an integer number (909171744).

Almost surely, 2^6664820327 is an apocalyptic number.

6664820327 is a deficient number, since it is larger than the sum of its proper divisors (608553625).

6664820327 is a wasteful number, since it uses less digits than its factorization.

6664820327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221749.

The product of its (nonzero) digits is 580608, while the sum is 44.

The square root of 6664820327 is about 81638.3508346414. The cubic root of 6664820327 is about 1881.8982945050.

The spelling of 6664820327 in words is "six billion, six hundred sixty-four million, eight hundred twenty thousand, three hundred twenty-seven".