167680217078 has 12 divisors (see below), whose sum is σ = 276464490540. Its totient is φ = 76218280380.

The previous prime is 167680217027. The next prime is 167680217189. The reversal of 167680217078 is 870712086761.

167680217078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 346446488 + ... + 346446971.

It is an arithmetic number, because the mean of its divisors is an integer number (23038707545).

Almost surely, 2^167680217078 is an apocalyptic number.

167680217078 is a deficient number, since it is larger than the sum of its proper divisors (108784273462).

167680217078 is a wasteful number, since it uses less digits than its factorization.

167680217078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692893483 (or 692893472 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 53.

The spelling of 167680217078 in words is "one hundred sixty-seven billion, six hundred eighty million, two hundred seventeen thousand, seventy-eight".