168215672 has 16 divisors (see below), whose sum is σ = 325579200. Its totient is φ = 81394560.

The previous prime is 168215669. The next prime is 168215701. The reversal of 168215672 is 276512861.

168215672 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×168215672³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338897 + ... + 339392.

It is an arithmetic number, because the mean of its divisors is an integer number (20348700).

Almost surely, 2^168215672 is an apocalyptic number.

It is an amenable number.

168215672 is a deficient number, since it is larger than the sum of its proper divisors (157363528).

168215672 is a wasteful number, since it uses less digits than its factorization.

168215672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678326 (or 678322 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 168215672 is about 12969.7984564140. The cubic root of 168215672 is about 552.0208544246.

The spelling of 168215672 in words is "one hundred sixty-eight million, two hundred fifteen thousand, six hundred seventy-two".