659697161 has 8 divisors (see below), whose sum is σ = 681318720. Its totient is φ = 638275248.

The previous prime is 659697151. The next prime is 659697167. The reversal of 659697161 is 161796956.

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 659697161 - 2¹⁸ = 659435017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (659697167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43181 + ... + 56426.

It is an arithmetic number, because the mean of its divisors is an integer number (85164840).

Almost surely, 2^659697161 is an apocalyptic number.

It is an amenable number.

659697161 is a deficient number, since it is larger than the sum of its proper divisors (21621559).

659697161 is a wasteful number, since it uses less digits than its factorization.

659697161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99823.

The product of its digits is 612360, while the sum is 50.

The square root of 659697161 is about 25684.5704850208. The cubic root of 659697161 is about 870.5255823652.

The spelling of 659697161 in words is "six hundred fifty-nine million, six hundred ninety-seven thousand, one hundred sixty-one".