205751996329 has 8 divisors (see below), whose sum is σ = 224520369120. Its totient is φ = 186994231200.

The previous prime is 205751996323. The next prime is 205751996381. The reversal of 205751996329 is 923699157502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 205751996329 - 2¹³ = 205751988137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205751996323) 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, 2611327 + ... + 2688964.

It is an arithmetic number, because the mean of its divisors is an integer number (28065046140).

Almost surely, 2^205751996329 is an apocalyptic number.

It is an amenable number.

205751996329 is a deficient number, since it is larger than the sum of its proper divisors (18768372791).

205751996329 is a wasteful number, since it uses less digits than its factorization.

205751996329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5303831.

The product of its (nonzero) digits is 9185400, while the sum is 58.

The spelling of 205751996329 in words is "two hundred five billion, seven hundred fifty-one million, nine hundred ninety-six thousand, three hundred twenty-nine".