667688333248 has 14 divisors (see below), whose sum is σ = 1324944036416. Its totient is φ = 333844166592.

The previous prime is 667688333189. The next prime is 667688333281. The reversal of 667688333248 is 842333886766.

It is a Harshad number since it is a multiple of its sum of digits (64), and also a Moran number because the ratio is a prime number: 10432630207 = 667688333248 / (6 + 6 + 7 + 6 + 8 + 8 + 3 + 3 + 3 + 2 + 4 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 667688333248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5216315040 + ... + 5216315167.

It is an arithmetic number, because the mean of its divisors is an integer number (94638859744).

Almost surely, 2^667688333248 is an apocalyptic number.

It is an amenable number.

667688333248 is a deficient number, since it is larger than the sum of its proper divisors (657255703168).

667688333248 is a wasteful number, since it uses less digits than its factorization.

667688333248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10432630219 (or 10432630209 counting only the distinct ones).

The product of its digits is 167215104, while the sum is 64.

The spelling of 667688333248 in words is "six hundred sixty-seven billion, six hundred eighty-eight million, three hundred thirty-three thousand, two hundred forty-eight".