206516710071 has 12 divisors (see below), whose sum is σ = 340916473872. Its totient is φ = 118009548576.

The previous prime is 206516710061. The next prime is 206516710079. The reversal of 206516710071 is 170017615602.

206516710071 is a `hidden beast` number, since 2 + 0 + 6 + 516 + 71 + 0 + 0 + 71 = 666.

It is not a de Polignac number, because 206516710071 - 2⁹ = 206516709559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206516710079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1639021446 + ... + 1639021571.

It is an arithmetic number, because the mean of its divisors is an integer number (28409706156).

Almost surely, 2^206516710071 is an apocalyptic number.

206516710071 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

206516710071 is a deficient number, since it is larger than the sum of its proper divisors (134399763801).

206516710071 is a wasteful number, since it uses less digits than its factorization.

206516710071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278043030 (or 3278043027 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The spelling of 206516710071 in words is "two hundred six billion, five hundred sixteen million, seven hundred ten thousand, seventy-one".