168004326178855 has 16 divisors (see below), whose sum is σ = 205992198365184. Its totient is φ = 131481498942880.

The previous prime is 168004326178849. The next prime is 168004326178859. The reversal of 168004326178855 is 558871623400861.

It is not a de Polignac number, because 168004326178855 - 2¹⁹ = 168004325654567 is a prime.

It is a super-2 number, since 2×168004326178855² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168004326178859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168834097 + ... + 169826266.

It is an arithmetic number, because the mean of its divisors is an integer number (12874512397824).

Almost surely, 2^{168004326178855} is an apocalyptic number.

168004326178855 is a deficient number, since it is larger than the sum of its proper divisors (37987872186329).

168004326178855 is a wasteful number, since it uses less digits than its factorization.

168004326178855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338662526.

The product of its (nonzero) digits is 77414400, while the sum is 64.

The spelling of 168004326178855 in words is "one hundred sixty-eight trillion, four billion, three hundred twenty-six million, one hundred seventy-eight thousand, eight hundred fifty-five".