667816336 has 40 divisors (see below), whose sum is σ = 1432613664. Its totient is φ = 299016960.

The previous prime is 667816283. The next prime is 667816363. The reversal of 667816336 is 633618766.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16525 + ... + 40108.

Almost surely, 2^667816336 is an apocalyptic number.

It is an amenable number.

667816336 is an abundant number, since it is smaller than the sum of its proper divisors (764797328).

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

667816336 is a wasteful number, since it uses less digits than its factorization.

667816336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56719 (or 56713 counting only the distinct ones).

The product of its digits is 653184, while the sum is 46.

The square root of 667816336 is about 25842.1426356252. The cubic root of 667816336 is about 874.0823406863.

The spelling of 667816336 in words is "six hundred sixty-seven million, eight hundred sixteen thousand, three hundred thirty-six".