229791573648 has 1440 divisors, whose sum is σ = 895564680192. Its totient is φ = 56435097600.

The previous prime is 229791573619. The next prime is 229791573659. The reversal of 229791573648 is 846375197922.

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 287 ways as a sum of consecutive naturals, for example, 3147829740 + ... + 3147829812.

Almost surely, 2^229791573648 is an apocalyptic number.

229791573648 is a gapful number since it is divisible by the number (28) 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 229791573648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447782340096).

229791573648 is an abundant number, since it is smaller than the sum of its proper divisors (665773106544).

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

229791573648 is a wasteful number, since it uses less digits than its factorization.

229791573648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 170 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 63.

The spelling of 229791573648 in words is "two hundred twenty-nine billion, seven hundred ninety-one million, five hundred seventy-three thousand, six hundred forty-eight".