205039931136 has 72 divisors (see below), whose sum is σ = 547970065104. Its totient is φ = 68062986240.

The previous prime is 205039931111. The next prime is 205039931141. The reversal of 205039931136 is 631139930502.

205039931136 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×205039931136⁴ (a number of 46 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368811 + ... + 738986.

Almost surely, 2^205039931136 is an apocalyptic number.

It is an amenable number.

205039931136 is an abundant number, since it is smaller than the sum of its proper divisors (342930133968).

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

205039931136 is a wasteful number, since it uses less digits than its factorization.

205039931136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108057 (or 1108043 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 42.

The spelling of 205039931136 in words is "two hundred five billion, thirty-nine million, nine hundred thirty-one thousand, one hundred thirty-six".