667448068 has 24 divisors (see below), whose sum is σ = 1339837184. Its totient is φ = 284990400.

The previous prime is 667448039. The next prime is 667448123. The reversal of 667448068 is 860844766.

It is an unprimeable number.

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, 36393 + ... + 51568.

Almost surely, 2^667448068 is an apocalyptic number.

It is an amenable number.

667448068 is an abundant number, since it is smaller than the sum of its proper divisors (672389116).

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

667448068 is a wasteful number, since it uses less digits than its factorization.

667448068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88243 (or 88241 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 49.

The square root of 667448068 is about 25835.0163150713. The cubic root of 667448068 is about 873.9216399436.

The spelling of 667448068 in words is "six hundred sixty-seven million, four hundred forty-eight thousand, sixty-eight".