229865231880 has 192 divisors, whose sum is σ = 772496524800. Its totient is φ = 59217315840.

The previous prime is 229865231837. The next prime is 229865231977. The reversal of 229865231880 is 88132568922.

It is a happy number.

229865231880 is a `hidden beast` number, since 2 + 29 + 8 + 6 + 523 + 18 + 80 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6533376 + ... + 6568464.

It is an arithmetic number, because the mean of its divisors is an integer number (4023419400).

Almost surely, 2^229865231880 is an apocalyptic number.

229865231880 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 229865231880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386248262400).

229865231880 is an abundant number, since it is smaller than the sum of its proper divisors (542631292920).

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

229865231880 is a wasteful number, since it uses less digits than its factorization.

229865231880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35724 (or 35717 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 229865231880 in words is "two hundred twenty-nine billion, eight hundred sixty-five million, two hundred thirty-one thousand, eight hundred eighty".