167391666798 has 8 divisors (see below), whose sum is σ = 334783333608. Its totient is φ = 55797222264.

The previous prime is 167391666791. The next prime is 167391666901. The reversal of 167391666798 is 897666193761.

167391666798 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

167391666798 is an admirable number.

It is a super-2 number, since 2×167391666798² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167391666791) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13949305561 + ... + 13949305572.

It is an arithmetic number, because the mean of its divisors is an integer number (41847916701).

Almost surely, 2^167391666798 is an apocalyptic number.

167391666798 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

167391666798 is a wasteful number, since it uses less digits than its factorization.

167391666798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27898611138.

The product of its digits is 123451776, while the sum is 69.

The spelling of 167391666798 in words is "one hundred sixty-seven billion, three hundred ninety-one million, six hundred sixty-six thousand, seven hundred ninety-eight".