659671106871 has 32 divisors (see below), whose sum is σ = 1010242142208. Its totient is φ = 375073359840.

The previous prime is 659671106867. The next prime is 659671106909. The reversal of 659671106871 is 178601176956.

It is a happy number.

It is not a de Polignac number, because 659671106871 - 2² = 659671106867 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659671106851) 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, 3587250 + ... + 3766656.

It is an arithmetic number, because the mean of its divisors is an integer number (31570066944).

Almost surely, 2^659671106871 is an apocalyptic number.

659671106871 is a deficient number, since it is larger than the sum of its proper divisors (350571035337).

659671106871 is a wasteful number, since it uses less digits than its factorization.

659671106871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180291.

The product of its (nonzero) digits is 3810240, while the sum is 57.

The spelling of 659671106871 in words is "six hundred fifty-nine billion, six hundred seventy-one million, one hundred six thousand, eight hundred seventy-one".