168320009672 has 16 divisors (see below), whose sum is σ = 315657202560. Its totient is φ = 84144755664.

The previous prime is 168320009659. The next prime is 168320009707. The reversal of 168320009672 is 276900023861.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1859168 + ... + 1947599.

It is an arithmetic number, because the mean of its divisors is an integer number (19728575160).

Almost surely, 2^168320009672 is an apocalyptic number.

It is an amenable number.

168320009672 is a deficient number, since it is larger than the sum of its proper divisors (147337192888).

168320009672 is a wasteful number, since it uses less digits than its factorization.

168320009672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3812300 (or 3812296 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 168320009672 in words is "one hundred sixty-eight billion, three hundred twenty million, nine thousand, six hundred seventy-two".