6664764016 has 40 divisors (see below), whose sum is σ = 13334654960. Its totient is φ = 3224987136.

The previous prime is 6664764011. The next prime is 6664764053. The reversal of 6664764016 is 6104674666.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6664764011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30556 + ... + 119428.

It is an arithmetic number, because the mean of its divisors is an integer number (333366374).

Almost surely, 2^6664764016 is an apocalyptic number.

It is an amenable number.

6664764016 is an abundant number, since it is smaller than the sum of its proper divisors (6669890944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6664764016 is a wasteful number, since it uses less digits than its factorization.

6664764016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89033 (or 89027 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 46.

The square root of 6664764016 is about 81638.0059531099. The cubic root of 6664764016 is about 1881.8929944435.

The spelling of 6664764016 in words is "six billion, six hundred sixty-four million, seven hundred sixty-four thousand, sixteen".