22131582168 has 16 divisors (see below), whose sum is σ = 55328955480. Its totient is φ = 7377194048.

The previous prime is 22131582163. The next prime is 22131582173. The reversal of 22131582168 is 86128513122.

It is an interprime number because it is at equal distance from previous prime (22131582163) and next prime (22131582173).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131582163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461074605 + ... + 461074652.

Almost surely, 2^22131582168 is an apocalyptic number.

It is an amenable number.

22131582168 is an abundant number, since it is smaller than the sum of its proper divisors (33197373312).

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

22131582168 is a wasteful number, since it uses less digits than its factorization.

22131582168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922149266 (or 922149262 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The spelling of 22131582168 in words is "twenty-two billion, one hundred thirty-one million, five hundred eighty-two thousand, one hundred sixty-eight".