22116166281 has 48 divisors (see below), whose sum is σ = 36504179712. Its totient is φ = 12771871200.

The previous prime is 22116166217. The next prime is 22116166291. The reversal of 22116166281 is 18266161122.

It is a happy number.

22116166281 is a `hidden beast` number, since 2 + 2 + 1 + 16 + 16 + 628 + 1 = 666.

It is not a de Polignac number, because 22116166281 - 2⁶ = 22116166217 is a prime.

It is a super-2 number, since 2×22116166281² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22116166291) 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 47 ways as a sum of consecutive naturals, for example, 580386 + ... + 617316.

It is an arithmetic number, because the mean of its divisors is an integer number (760503744).

Almost surely, 2^22116166281 is an apocalyptic number.

It is an amenable number.

22116166281 is a deficient number, since it is larger than the sum of its proper divisors (14388013431).

22116166281 is a wasteful number, since it uses less digits than its factorization.

22116166281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37234 (or 37231 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The spelling of 22116166281 in words is "twenty-two billion, one hundred sixteen million, one hundred sixty-six thousand, two hundred eighty-one".