22133566555 has 4 divisors (see below), whose sum is σ = 26560279872. Its totient is φ = 17706853240.

The previous prime is 22133566547. The next prime is 22133566571. The reversal of 22133566555 is 55566533122.

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

It is not a de Polignac number, because 22133566555 - 2³ = 22133566547 is a prime.

It is a super-2 number, since 2×22133566555² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2213356651 + ... + 2213356660.

It is an arithmetic number, because the mean of its divisors is an integer number (6640069968).

Almost surely, 2^22133566555 is an apocalyptic number.

22133566555 is a deficient number, since it is larger than the sum of its proper divisors (4426713317).

22133566555 is an equidigital number, since it uses as much as digits as its factorization.

22133566555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4426713316.

The product of its digits is 810000, while the sum is 43.

The spelling of 22133566555 in words is "twenty-two billion, one hundred thirty-three million, five hundred sixty-six thousand, five hundred fifty-five".