22123168478 has 8 divisors (see below), whose sum is σ = 33308116920. Its totient is φ = 11020462840.

The previous prime is 22123168451. The next prime is 22123168523. The reversal of 22123168478 is 87486132122.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20560028 + ... + 20561103.

It is an arithmetic number, because the mean of its divisors is an integer number (4163514615).

Almost surely, 2^22123168478 is an apocalyptic number.

22123168478 is a deficient number, since it is larger than the sum of its proper divisors (11184948442).

22123168478 is a wasteful number, since it uses less digits than its factorization.

22123168478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41121402.

The product of its digits is 258048, while the sum is 44.

The spelling of 22123168478 in words is "twenty-two billion, one hundred twenty-three million, one hundred sixty-eight thousand, four hundred seventy-eight".