667214322808 has 16 divisors (see below), whose sum is σ = 1364756569560. Its totient is φ = 303279237600.

The previous prime is 667214322793. The next prime is 667214322893. The reversal of 667214322808 is 808223412766.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3790990383 + ... + 3790990558.

Almost surely, 2^667214322808 is an apocalyptic number.

It is an amenable number.

667214322808 is an abundant number, since it is smaller than the sum of its proper divisors (697542246752).

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

667214322808 is a wasteful number, since it uses less digits than its factorization.

667214322808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7581980958 (or 7581980954 counting only the distinct ones).

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

The spelling of 667214322808 in words is "six hundred sixty-seven billion, two hundred fourteen million, three hundred twenty-two thousand, eight hundred eight".