667406703704 has 64 divisors (see below), whose sum is σ = 1448759692800. Its totient is φ = 285612545664.

The previous prime is 667406703679. The next prime is 667406703721. The reversal of 667406703704 is 407307604766.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3500282 + ... + 3686025.

It is an arithmetic number, because the mean of its divisors is an integer number (22636870200).

Almost surely, 2^667406703704 is an apocalyptic number.

It is an amenable number.

667406703704 is an abundant number, since it is smaller than the sum of its proper divisors (781352989096).

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

667406703704 is a wasteful number, since it uses less digits than its factorization.

667406703704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7186392 (or 7186388 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 50.

The spelling of 667406703704 in words is "six hundred sixty-seven billion, four hundred six million, seven hundred three thousand, seven hundred four".