22023320556 has 24 divisors (see below), whose sum is σ = 51392263104. Its totient is φ = 7340461840.

The previous prime is 22023320551. The next prime is 22023320569. The reversal of 22023320556 is 65502332022.

It is not an unprimeable number, because it can be changed into a prime (22023320551) 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, 73411 + ... + 222341.

It is an arithmetic number, because the mean of its divisors is an integer number (2141344296).

Almost surely, 2^22023320556 is an apocalyptic number.

It is an amenable number.

22023320556 is an abundant number, since it is smaller than the sum of its proper divisors (29368942548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22023320556 is a wasteful number, since it uses less digits than its factorization.

22023320556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161261 (or 161259 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 22023320556 its reverse (65502332022), we get a palindrome (87525652578).

The spelling of 22023320556 in words is "twenty-two billion, twenty-three million, three hundred twenty thousand, five hundred fifty-six".