6667388320 has 48 divisors (see below), whose sum is σ = 15761186280. Its totient is φ = 2665350144.

The previous prime is 6667388317. The next prime is 6667388323. The reversal of 6667388320 is 238837666.

It is an interprime number because it is at equal distance from previous prime (6667388317) and next prime (6667388323).

It can be written as a sum of positive squares in 4 ways, for example, as 5168459664 + 1498928656 = 71892^2 + 38716^2 .

It is not an unprimeable number, because it can be changed into a prime (6667388323) 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, 274594 + ... + 297886.

Almost surely, 2^6667388320 is an apocalyptic number.

It is an amenable number.

6667388320 is an abundant number, since it is smaller than the sum of its proper divisors (9093797960).

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

6667388320 is a wasteful number, since it uses less digits than its factorization.

6667388320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25097 (or 25089 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 49.

The square root of 6667388320 is about 81654.0771792811. The cubic root of 6667388320 is about 1882.1399654905.

The spelling of 6667388320 in words is "six billion, six hundred sixty-seven million, three hundred eighty-eight thousand, three hundred twenty".