205133053216 has 96 divisors (see below), whose sum is σ = 499927534848. Its totient is φ = 80682255360.

The previous prime is 205133053199. The next prime is 205133053259. The reversal of 205133053216 is 612350331502.

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, 300181 + ... + 707371.

It is an arithmetic number, because the mean of its divisors is an integer number (5207578488).

Almost surely, 2^205133053216 is an apocalyptic number.

205133053216 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 205133053216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249963767424).

205133053216 is an abundant number, since it is smaller than the sum of its proper divisors (294794481632).

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

205133053216 is a wasteful number, since it uses less digits than its factorization.

205133053216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407394 (or 407386 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 205133053216 its reverse (612350331502), we get a palindrome (817483384718).

The spelling of 205133053216 in words is "two hundred five billion, one hundred thirty-three million, fifty-three thousand, two hundred sixteen".