22047560918 has 4 divisors (see below), whose sum is σ = 33071341380. Its totient is φ = 11023780458.

The previous prime is 22047560911. The next prime is 22047560921. The reversal of 22047560918 is 81906574022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22047560911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5511890228 + ... + 5511890231.

It is an arithmetic number, because the mean of its divisors is an integer number (8267835345).

Almost surely, 2^22047560918 is an apocalyptic number.

22047560918 is a deficient number, since it is larger than the sum of its proper divisors (11023780462).

22047560918 is a wasteful number, since it uses less digits than its factorization.

22047560918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11023780461.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 22047560918 in words is "twenty-two billion, forty-seven million, five hundred sixty thousand, nine hundred eighteen".