205266201035020 has 96 divisors (see below), whose sum is σ = 440857136256768. Its totient is φ = 80252241119232.

The previous prime is 205266201035017. The next prime is 205266201035029. The reversal of 205266201035020 is 20530102662502.

It is not an unprimeable number, because it can be changed into a prime (205266201035029) 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, 531726712 + ... + 532112608.

It is an arithmetic number, because the mean of its divisors is an integer number (4592261836008).

Almost surely, 2^{205266201035020} is an apocalyptic number.

205266201035020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205266201035020 is an abundant number, since it is smaller than the sum of its proper divisors (235590935221748).

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

205266201035020 is a wasteful number, since it uses less digits than its factorization.

205266201035020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387859 (or 387857 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 205266201035020 its reverse (20530102662502), we get a palindrome (225796303697522).

The spelling of 205266201035020 in words is "two hundred five trillion, two hundred sixty-six billion, two hundred one million, thirty-five thousand, twenty".