205968210255359 has 32 divisors (see below), whose sum is σ = 222485676134400. Its totient is φ = 190228067124480.

The previous prime is 205968210255343. The next prime is 205968210255361. The reversal of 205968210255359 is 953552012869502.

It is not a de Polignac number, because 205968210255359 - 2⁴ = 205968210255343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205968210255329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 252667862 + ... + 253481724.

It is an arithmetic number, because the mean of its divisors is an integer number (6952677379200).

Almost surely, 2^{205968210255359} is an apocalyptic number.

205968210255359 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

205968210255359 is a deficient number, since it is larger than the sum of its proper divisors (16517465879041).

205968210255359 is a wasteful number, since it uses less digits than its factorization.

205968210255359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817175.

The product of its (nonzero) digits is 58320000, while the sum is 62.

The spelling of 205968210255359 in words is "two hundred five trillion, nine hundred sixty-eight billion, two hundred ten million, two hundred fifty-five thousand, three hundred fifty-nine".