22166871798 has 16 divisors (see below), whose sum is σ = 44346456000. Its totient is φ = 7386838536.

The previous prime is 22166871763. The next prime is 22166871803. The reversal of 22166871798 is 89717866122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506940 + ... + 548927.

It is an arithmetic number, because the mean of its divisors is an integer number (2771653500).

Almost surely, 2^22166871798 is an apocalyptic number.

22166871798 is an abundant number, since it is smaller than the sum of its proper divisors (22179584202).

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

22166871798 is a wasteful number, since it uses less digits than its factorization.

22166871798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059371.

The product of its digits is 4064256, while the sum is 57.

The spelling of 22166871798 in words is "twenty-two billion, one hundred sixty-six million, eight hundred seventy-one thousand, seven hundred ninety-eight".