229051258920 has 320 divisors, whose sum is σ = 840518078400. Its totient is φ = 55483729920.

The previous prime is 229051258903. The next prime is 229051258957. The reversal of 229051258920 is 29852150922.

It is a happy number.

229051258920 is a `hidden beast` number, since 22 + 90 + 512 + 5 + 8 + 9 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 86140551 + ... + 86143209.

It is an arithmetic number, because the mean of its divisors is an integer number (2626618995).

Almost surely, 2^229051258920 is an apocalyptic number.

229051258920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229051258920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420259039200).

229051258920 is an abundant number, since it is smaller than the sum of its proper divisors (611466819480).

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

229051258920 is a wasteful number, since it uses less digits than its factorization.

229051258920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110 (or 5097 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

It can be divided in two parts, 2290512 and 58920, that added together give a palindrome (2349432).

The spelling of 229051258920 in words is "two hundred twenty-nine billion, fifty-one million, two hundred fifty-eight thousand, nine hundred twenty".