22856867181 has 12 divisors (see below), whose sum is σ = 33717932352. Its totient is φ = 14913700296.

The previous prime is 22856867153. The next prime is 22856867203. The reversal of 22856867181 is 18176865822.

22856867181 is a `hidden beast` number, since 2 + 2 + 8 + 568 + 6 + 71 + 8 + 1 = 666.

It is not a de Polignac number, because 22856867181 - 2¹¹ = 22856865133 is a prime.

It is a super-2 number, since 2×22856867181² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22856867581) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27017151 + ... + 27017996.

It is an arithmetic number, because the mean of its divisors is an integer number (2809827696).

Almost surely, 2^22856867181 is an apocalyptic number.

It is an amenable number.

22856867181 is a deficient number, since it is larger than the sum of its proper divisors (10861065171).

22856867181 is a wasteful number, since it uses less digits than its factorization.

22856867181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54035200 (or 54035197 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 54.

The spelling of 22856867181 in words is "twenty-two billion, eight hundred fifty-six million, eight hundred sixty-seven thousand, one hundred eighty-one".