22165555230 has 960 divisors, whose sum is σ = 83645654400. Its totient is φ = 4169926656.

The previous prime is 22165555201. The next prime is 22165555231. The reversal of 22165555230 is 3255556122.

22165555230 is a `hidden beast` number, since 2 + 21 + 6 + 55 + 552 + 30 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22165555231) by changing a digit.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 1166608161 + ... + 1166608179.

It is an arithmetic number, because the mean of its divisors is an integer number (87130890).

Almost surely, 2^22165555230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22165555230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41822827200).

22165555230 is an abundant number, since it is smaller than the sum of its proper divisors (61480099170).

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

22165555230 is a wasteful number, since it uses less digits than its factorization.

22165555230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 66 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 22165555230 in words is "twenty-two billion, one hundred sixty-five million, five hundred fifty-five thousand, two hundred thirty".