205299909248 has 64 divisors (see below), whose sum is σ = 470519733120. Its totient is φ = 87402931200.

The previous prime is 205299909247. The next prime is 205299909251. The reversal of 205299909248 is 842909992502.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (205299909247) 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, 623411 + ... + 894002.

It is an arithmetic number, because the mean of its divisors is an integer number (7351870830).

Almost surely, 2^205299909248 is an apocalyptic number.

205299909248 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

205299909248 is an abundant number, since it is smaller than the sum of its proper divisors (265219823872).

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

205299909248 is a wasteful number, since it uses less digits than its factorization.

205299909248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1517585 (or 1517573 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 59.

The spelling of 205299909248 in words is "two hundred five billion, two hundred ninety-nine million, nine hundred nine thousand, two hundred forty-eight".