22045751181 has 64 divisors (see below), whose sum is σ = 35661461760. Its totient is φ = 13403750400.

The previous prime is 22045751173. The next prime is 22045751207. The reversal of 22045751181 is 18115754022.

It is a happy number.

22045751181 is a `hidden beast` number, since 2 + 2 + 0 + 4 + 575 + 1 + 1 + 81 = 666.

It is not a de Polignac number, because 22045751181 - 2³ = 22045751173 is a prime.

It is a super-2 number, since 2×22045751181² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22045751881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4362106 + ... + 4367156.

It is an arithmetic number, because the mean of its divisors is an integer number (557210340).

Almost surely, 2^22045751181 is an apocalyptic number.

It is an amenable number.

22045751181 is a deficient number, since it is larger than the sum of its proper divisors (13615710579).

22045751181 is a wasteful number, since it uses less digits than its factorization.

22045751181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5371 (or 5365 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The spelling of 22045751181 in words is "twenty-two billion, forty-five million, seven hundred fifty-one thousand, one hundred eighty-one".