659397593089 has 3 divisors (see below), whose sum is σ = 659398405123. Its totient is φ = 659396781056.

The previous prime is 659397593083. The next prime is 659397593117. The reversal of 659397593089 is 980395793956.

The square root of 659397593089 is 812033.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 198617292225 + 460780300864 = 445665^2 + 678808^2 .

It is not a de Polignac number, because 659397593089 - 2¹⁹ = 659397068801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (659397593083) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 406017 + ... + 1218049.

Almost surely, 2^659397593089 is an apocalyptic number.

659397593089 is the 812033-rd square number.

659397593089 is the 406017-th centered octagonal number.

It is an amenable number.

659397593089 is a deficient number, since it is larger than the sum of its proper divisors (812034).

659397593089 is an frugal number, since it uses more digits than its factorization.

659397593089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1624066 (or 812033 counting only the distinct ones).

The product of its (nonzero) digits is 496011600, while the sum is 73.

The spelling of 659397593089 in words is "six hundred fifty-nine billion, three hundred ninety-seven million, five hundred ninety-three thousand, eighty-nine".