22105800806 has 16 divisors (see below), whose sum is σ = 33243488304. Its totient is φ = 11024675424.

The previous prime is 22105800737. The next prime is 22105800809. The reversal of 22105800806 is 60800850122.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22105800809) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1285940 + ... + 1303016.

It is an arithmetic number, because the mean of its divisors is an integer number (2077718019).

Almost surely, 2^22105800806 is an apocalyptic number.

22105800806 is a deficient number, since it is larger than the sum of its proper divisors (11137687498).

22105800806 is a wasteful number, since it uses less digits than its factorization.

22105800806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18695.

The product of its (nonzero) digits is 7680, while the sum is 32.

The spelling of 22105800806 in words is "twenty-two billion, one hundred five million, eight hundred thousand, eight hundred six".