659561117 has 8 divisors (see below), whose sum is σ = 694769760. Its totient is φ = 624402000.

The previous prime is 659561083. The next prime is 659561129. The reversal of 659561117 is 711165956.

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

It is a cyclic number.

It is not a de Polignac number, because 659561117 - 2¹² = 659557021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659561167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16742 + ... + 39992.

It is an arithmetic number, because the mean of its divisors is an integer number (86846220).

Almost surely, 2^659561117 is an apocalyptic number.

It is an amenable number.

659561117 is a deficient number, since it is larger than the sum of its proper divisors (35208643).

659561117 is a wasteful number, since it uses less digits than its factorization.

659561117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24763.

The product of its digits is 56700, while the sum is 41.

The square root of 659561117 is about 25681.9219880444. The cubic root of 659561117 is about 870.4657377723.

The spelling of 659561117 in words is "six hundred fifty-nine million, five hundred sixty-one thousand, one hundred seventeen".