22061005806 has 32 divisors (see below), whose sum is σ = 50612636160. Its totient is φ = 6279709536.

The previous prime is 22061005801. The next prime is 22061005861. The reversal of 22061005806 is 60850016022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22061005801) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 965026 + ... + 987621.

It is an arithmetic number, because the mean of its divisors is an integer number (1581644880).

Almost surely, 2^22061005806 is an apocalyptic number.

22061005806 is an abundant number, since it is smaller than the sum of its proper divisors (28551630354).

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

22061005806 is a wasteful number, since it uses less digits than its factorization.

22061005806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952928.

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 22061005806 in words is "twenty-two billion, sixty-one million, five thousand, eight hundred six".