667800063296 has 28 divisors (see below), whose sum is σ = 1325573031348. Its totient is φ = 333797409792.

The previous prime is 667800063251. The next prime is 667800063311. The reversal of 667800063296 is 692360008766.

It can be written as a sum of positive squares in 2 ways, for example, as 317572823296 + 350227240000 = 563536^2 + 591800^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1393391 + ... + 1810286.

Almost surely, 2^667800063296 is an apocalyptic number.

It is an amenable number.

667800063296 is a deficient number, since it is larger than the sum of its proper divisors (657772968052).

667800063296 is a wasteful number, since it uses less digits than its factorization.

667800063296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3206946 (or 3206936 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 667800063296 in words is "six hundred sixty-seven billion, eight hundred million, sixty-three thousand, two hundred ninety-six".