22305805881 has 16 divisors (see below), whose sum is σ = 31042327680. Its totient is φ = 14220250880.

The previous prime is 22305805871. The next prime is 22305805897. The reversal of 22305805881 is 18850850322.

It is a cyclic number.

It is not a de Polignac number, because 22305805881 - 2⁵ = 22305805849 is a prime.

It is a super-2 number, since 2×22305805881² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22305805831) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 234721 + ... + 315761.

It is an arithmetic number, because the mean of its divisors is an integer number (1940145480).

Almost surely, 2^22305805881 is an apocalyptic number.

It is an amenable number.

22305805881 is a deficient number, since it is larger than the sum of its proper divisors (8736521799).

22305805881 is a wasteful number, since it uses less digits than its factorization.

22305805881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85056.

The product of its (nonzero) digits is 153600, while the sum is 42.

The spelling of 22305805881 in words is "twenty-two billion, three hundred five million, eight hundred five thousand, eight hundred eighty-one".