22166533444 has 96 divisors (see below), whose sum is σ = 45533892096. Its totient is φ = 9330209280.

The previous prime is 22166533309. The next prime is 22166533447. The reversal of 22166533444 is 44433566122.

It is a super-2 number, since 2×22166533444² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22166533397 and 22166533406.

It is not an unprimeable number, because it can be changed into a prime (22166533447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19059207 + ... + 19060369.

It is an arithmetic number, because the mean of its divisors is an integer number (474311376).

Almost surely, 2^22166533444 is an apocalyptic number.

It is an amenable number.

22166533444 is an abundant number, since it is smaller than the sum of its proper divisors (23367358652).

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

22166533444 is a wasteful number, since it uses less digits than its factorization.

22166533444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585 (or 1583 counting only the distinct ones).

The product of its digits is 414720, while the sum is 40.

The spelling of 22166533444 in words is "twenty-two billion, one hundred sixty-six million, five hundred thirty-three thousand, four hundred forty-four".