206616671007 has 8 divisors (see below), whose sum is σ = 275491065984. Its totient is φ = 137743361688.

The previous prime is 206616670999. The next prime is 206616671017. The reversal of 206616671007 is 700176616602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 206616671007 - 2³ = 206616670999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 206616671007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206616671017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436228 + ... + 776870.

It is an arithmetic number, because the mean of its divisors is an integer number (34436383248).

Almost surely, 2^206616671007 is an apocalyptic number.

206616671007 is a deficient number, since it is larger than the sum of its proper divisors (68874394977).

206616671007 is a wasteful number, since it uses less digits than its factorization.

206616671007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542829.

The product of its (nonzero) digits is 127008, while the sum is 42.

The spelling of 206616671007 in words is "two hundred six billion, six hundred sixteen million, six hundred seventy-one thousand, seven".