201433565216 has 96 divisors (see below), whose sum is σ = 459865486080. Its totient is φ = 86017314816.

The previous prime is 201433565189. The next prime is 201433565237. The reversal of 201433565216 is 612565334102.

It is a self number, because there is not a number n which added to its sum of digits gives 201433565216.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175865 + ... + 658631.

It is an arithmetic number, because the mean of its divisors is an integer number (4790265480).

Almost surely, 2^201433565216 is an apocalyptic number.

201433565216 is a gapful number since it is divisible by the number (26) 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 201433565216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229932743040).

201433565216 is an abundant number, since it is smaller than the sum of its proper divisors (258431920864).

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

201433565216 is a wasteful number, since it uses less digits than its factorization.

201433565216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482866 (or 482858 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 201433565216 its reverse (612565334102), we get a palindrome (813998899318).

The spelling of 201433565216 in words is "two hundred one billion, four hundred thirty-three million, five hundred sixty-five thousand, two hundred sixteen".