667066704040 has 32 divisors (see below), whose sum is σ = 1637345547360. Its totient is φ = 242569710400.

The previous prime is 667066704013. The next prime is 667066704067. The reversal of 667066704040 is 40407660766.

It is an interprime number because it is at equal distance from previous prime (667066704013) and next prime (667066704067).

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, 758029906 + ... + 758030785.

It is an arithmetic number, because the mean of its divisors is an integer number (51167048355).

Almost surely, 2^667066704040 is an apocalyptic number.

It is an amenable number.

667066704040 is an abundant number, since it is smaller than the sum of its proper divisors (970278843320).

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

667066704040 is a wasteful number, since it uses less digits than its factorization.

667066704040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516060713 (or 1516060709 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 46.

The spelling of 667066704040 in words is "six hundred sixty-seven billion, sixty-six million, seven hundred four thousand, forty".