667140567606 has 12 divisors (see below), whose sum is σ = 1445471229852. Its totient is φ = 222380189196.

The previous prime is 667140567581. The next prime is 667140567619. The reversal of 667140567606 is 606765041766.

It is a happy number.

667140567606 is a `hidden beast` number, since 6 + 6 + 7 + 14 + 0 + 567 + 60 + 6 = 666.

667140567606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18531682416 + ... + 18531682451.

It is an arithmetic number, because the mean of its divisors is an integer number (120455935821).

Almost surely, 2^667140567606 is an apocalyptic number.

667140567606 is an abundant number, since it is smaller than the sum of its proper divisors (778330662246).

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

667140567606 is a wasteful number, since it uses less digits than its factorization.

667140567606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37063364875 (or 37063364872 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The spelling of 667140567606 in words is "six hundred sixty-seven billion, one hundred forty million, five hundred sixty-seven thousand, six hundred six".