168228909822860 has 12 divisors (see below), whose sum is σ = 353280710628048. Its totient is φ = 67291563929136.

The previous prime is 168228909822851. The next prime is 168228909822991. The reversal of 168228909822860 is 68228909822861.

It is a super-2 number, since 2×168228909822860² (a number of 29 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 4205722745552 + ... + 4205722745591.

It is an arithmetic number, because the mean of its divisors is an integer number (29440059219004).

Almost surely, 2^{168228909822860} is an apocalyptic number.

168228909822860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168228909822860 is an abundant number, since it is smaller than the sum of its proper divisors (185051800805188).

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

168228909822860 is a wasteful number, since it uses less digits than its factorization.

168228909822860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8411445491152 (or 8411445491150 counting only the distinct ones).

The product of its (nonzero) digits is 191102976, while the sum is 71.

Subtracting from 168228909822860 its reverse (68228909822861), we obtain a palindrome (99999999999999).

The spelling of 168228909822860 in words is "one hundred sixty-eight trillion, two hundred twenty-eight billion, nine hundred nine million, eight hundred twenty-two thousand, eight hundred sixty".