22061005805 has 8 divisors (see below), whose sum is σ = 26520232032. Its totient is φ = 17617454608.

The previous prime is 22061005801. The next prime is 22061005861. The reversal of 22061005805 is 50850016022.

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

It is a cyclic number.

It is not a de Polignac number, because 22061005805 - 2² = 22061005801 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 3915659 + ... + 3921288.

It is an arithmetic number, because the mean of its divisors is an integer number (3315029004).

Almost surely, 2^22061005805 is an apocalyptic number.

It is an amenable number.

22061005805 is a deficient number, since it is larger than the sum of its proper divisors (4459226227).

22061005805 is an equidigital number, since it uses as much as digits as its factorization.

22061005805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7837515.

The product of its (nonzero) digits is 4800, while the sum is 29.

The spelling of 22061005805 in words is "twenty-two billion, sixty-one million, five thousand, eight hundred five".