667808873448 has 16 divisors (see below), whose sum is σ = 1669522183680. Its totient is φ = 222602957808.

The previous prime is 667808873411. The next prime is 667808873449. The reversal of 667808873448 is 844378808766.

It is not an unprimeable number, because it can be changed into a prime (667808873449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13912684840 + ... + 13912684887.

It is an arithmetic number, because the mean of its divisors is an integer number (104345136480).

Almost surely, 2^667808873448 is an apocalyptic number.

It is an amenable number.

667808873448 is an abundant number, since it is smaller than the sum of its proper divisors (1001713310232).

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

667808873448 is a wasteful number, since it uses less digits than its factorization.

667808873448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27825369736 (or 27825369732 counting only the distinct ones).

The product of its (nonzero) digits is 346816512, while the sum is 69.

The spelling of 667808873448 in words is "six hundred sixty-seven billion, eight hundred eight million, eight hundred seventy-three thousand, four hundred forty-eight".