164227027868568 has 96 divisors (see below), whose sum is σ = 508411428688800. Its totient is φ = 46913730200064.

The previous prime is 164227027868557. The next prime is 164227027868581. The reversal of 164227027868568 is 865868720722461.

164227027868568 is a `hidden beast` number, since 1 + 6 + 4 + 2 + 270 + 278 + 6 + 85 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 164227027868496 and 164227027868505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25882221 + ... + 31596572.

It is an arithmetic number, because the mean of its divisors is an integer number (5295952382175).

Almost surely, 2^{164227027868568} is an apocalyptic number.

164227027868568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

164227027868568 is an abundant number, since it is smaller than the sum of its proper divisors (344184400820232).

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

164227027868568 is a wasteful number, since it uses less digits than its factorization.

164227027868568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57484481 (or 57484474 counting only the distinct ones).

The product of its (nonzero) digits is 867041280, while the sum is 72.

The spelling of 164227027868568 in words is "one hundred sixty-four trillion, two hundred twenty-seven billion, twenty-seven million, eight hundred sixty-eight thousand, five hundred sixty-eight".