206073540671 has 2 divisors, whose sum is σ = 206073540672. Its totient is φ = 206073540670.

The previous prime is 206073540641. The next prime is 206073540683. The reversal of 206073540671 is 176045370602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206073540671 - 2²² = 206069346367 is a prime.

It is a super-2 number, since 2×206073540671² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206073540601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103036770335 + 103036770336.

It is an arithmetic number, because the mean of its divisors is an integer number (103036770336).

Almost surely, 2^206073540671 is an apocalyptic number.

206073540671 is a deficient number, since it is larger than the sum of its proper divisors (1).

206073540671 is an equidigital number, since it uses as much as digits as its factorization.

206073540671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 206073540671 in words is "two hundred six billion, seventy-three million, five hundred forty thousand, six hundred seventy-one".