229651994880 has 1152 divisors, whose sum is σ = 1023347404800. Its totient is φ = 47377612800.

The previous prime is 229651994867. The next prime is 229651994921. The reversal of 229651994880 is 88499156922.

229651994880 is a `hidden beast` number, since 2 + 2 + 9 + 65 + 1 + 99 + 488 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 561496116 + ... + 561496524.

It is an arithmetic number, because the mean of its divisors is an integer number (888322400).

Almost surely, 2^229651994880 is an apocalyptic number.

229651994880 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 229651994880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511673702400).

229651994880 is an abundant number, since it is smaller than the sum of its proper divisors (793695409920).

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

229651994880 is a wasteful number, since it uses less digits than its factorization.

229651994880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 63.

The spelling of 229651994880 in words is "two hundred twenty-nine billion, six hundred fifty-one million, nine hundred ninety-four thousand, eight hundred eighty".