205304102912 has 152 divisors (see below), whose sum is σ = 453889935936. Its totient is φ = 92366962688.

The previous prime is 205304102909. The next prime is 205304102917. The reversal of 205304102912 is 219201403502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205304102917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102497303 + ... + 102499305.

Almost surely, 2^205304102912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 205304102912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226944967968).

205304102912 is an abundant number, since it is smaller than the sum of its proper divisors (248585833024).

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

205304102912 is an frugal number, since it uses more digits than its factorization.

205304102912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079 (or 2045 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 205304102912 in words is "two hundred five billion, three hundred four million, one hundred two thousand, nine hundred twelve".