22442806018 has 16 divisors (see below), whose sum is σ = 34196528160. Its totient is φ = 11044256256.

The previous prime is 22442806007. The next prime is 22442806019. The reversal of 22442806018 is 81060824422.

It is not an unprimeable number, because it can be changed into a prime (22442806019) 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, 81873 + ... + 227131.

It is an arithmetic number, because the mean of its divisors is an integer number (2137283010).

Almost surely, 2^22442806018 is an apocalyptic number.

22442806018 is a deficient number, since it is larger than the sum of its proper divisors (11753722142).

22442806018 is a wasteful number, since it uses less digits than its factorization.

22442806018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146481.

The product of its (nonzero) digits is 49152, while the sum is 37.

The spelling of 22442806018 in words is "twenty-two billion, four hundred forty-two million, eight hundred six thousand, eighteen".