229261998368 has 162 divisors, whose sum is σ = 520550617419. Its totient is φ = 99328899072.

The previous prime is 229261998367. The next prime is 229261998377. The reversal of 229261998368 is 863899162922.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 92944497424 + 136317500944 = 304868^2 + 369212^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=338572.

It is a super-2 number, since 2×229261998368² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229261998367) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 598595105 + ... + 598595487.

Almost surely, 2^229261998368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229261998368

229261998368 is an abundant number, since it is smaller than the sum of its proper divisors (291288619051).

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

229261998368 is an equidigital number, since it uses as much as digits as its factorization.

229261998368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836 (or 415 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 65.

The spelling of 229261998368 in words is "two hundred twenty-nine billion, two hundred sixty-one million, nine hundred ninety-eight thousand, three hundred sixty-eight".