659683907137 has 4 divisors (see below), whose sum is σ = 664499118276. Its totient is φ = 654868696000.

The previous prime is 659683907131. The next prime is 659683907153. The reversal of 659683907137 is 731709386956.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 309029257216 + 350654649921 = 555904^2 + 592161^2 .

It is a cyclic number.

It is not a de Polignac number, because 659683907137 - 2²³ = 659675518529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (659683907131) 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 3 ways as a sum of consecutive naturals, for example, 2407605364 + ... + 2407605637.

It is an arithmetic number, because the mean of its divisors is an integer number (166124779569).

Almost surely, 2^659683907137 is an apocalyptic number.

It is an amenable number.

659683907137 is a deficient number, since it is larger than the sum of its proper divisors (4815211139).

659683907137 is a wasteful number, since it uses less digits than its factorization.

659683907137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4815211138.

The product of its (nonzero) digits is 51438240, while the sum is 64.

The spelling of 659683907137 in words is "six hundred fifty-nine billion, six hundred eighty-three million, nine hundred seven thousand, one hundred thirty-seven".