229948695920 has 80 divisors (see below), whose sum is σ = 546144187392. Its totient is φ = 90007756800.

The previous prime is 229948695871. The next prime is 229948695923. The reversal of 229948695920 is 29596849922.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229948695923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1553120 + ... + 1694720.

Almost surely, 2^229948695920 is an apocalyptic number.

229948695920 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 229948695920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273072093696).

229948695920 is an abundant number, since it is smaller than the sum of its proper divisors (316195491472).

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

229948695920 is a wasteful number, since it uses less digits than its factorization.

229948695920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142050 (or 142044 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 65.

The spelling of 229948695920 in words is "two hundred twenty-nine billion, nine hundred forty-eight million, six hundred ninety-five thousand, nine hundred twenty".