667104396768 has 108 divisors (see below), whose sum is σ = 2015235495000. Its totient is φ = 209287627776.

The previous prime is 667104396733. The next prime is 667104396821. The reversal of 667104396768 is 867693401766.

667104396768 is a `hidden beast` number, since 66 + 71 + 0 + 439 + 6 + 76 + 8 = 666.

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 17 ways as a sum of consecutive naturals, for example, 3924268 + ... + 4090731.

Almost surely, 2^667104396768 is an apocalyptic number.

667104396768 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

667104396768 is an abundant number, since it is smaller than the sum of its proper divisors (1348131098232).

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

667104396768 is a wasteful number, since it uses less digits than its factorization.

667104396768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8015049 (or 8015021 counting only the distinct ones).

The product of its (nonzero) digits is 54867456, while the sum is 63.

The spelling of 667104396768 in words is "six hundred sixty-seven billion, one hundred four million, three hundred ninety-six thousand, seven hundred sixty-eight".