667256325108 has 24 divisors (see below), whose sum is σ = 1593139134048. Its totient is φ = 217246245216.

The previous prime is 667256325013. The next prime is 667256325161. The reversal of 667256325108 is 801523652766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 646565691 + ... + 646566722.

It is an arithmetic number, because the mean of its divisors is an integer number (66380797252).

Almost surely, 2^667256325108 is an apocalyptic number.

It is an amenable number.

667256325108 is an abundant number, since it is smaller than the sum of its proper divisors (925882808940).

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

667256325108 is a wasteful number, since it uses less digits than its factorization.

667256325108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293132463 (or 1293132461 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 667256325108 in words is "six hundred sixty-seven billion, two hundred fifty-six million, three hundred twenty-five thousand, one hundred eight".