205071634622071 has 16 divisors (see below), whose sum is σ = 237713712864768. Its totient is φ = 173267030210400.

The previous prime is 205071634622051. The next prime is 205071634622131. The reversal of 205071634622071 is 170226436170502.

It is not a de Polignac number, because 205071634622071 - 2²⁷ = 205071500404343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205071634622051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36600165 + ... + 41829598.

It is an arithmetic number, because the mean of its divisors is an integer number (14857107054048).

Almost surely, 2^{205071634622071} is an apocalyptic number.

205071634622071 is a deficient number, since it is larger than the sum of its proper divisors (32642078242697).

205071634622071 is an equidigital number, since it uses as much as digits as its factorization.

205071634622071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78435102.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 205071634622071 in words is "two hundred five trillion, seventy-one billion, six hundred thirty-four million, six hundred twenty-two thousand, seventy-one".