659985283709 has 8 divisors (see below), whose sum is σ = 666808332288. Its totient is φ = 653162624640.

The previous prime is 659985283703. The next prime is 659985283723. The reversal of 659985283709 is 907382589956.

659985283709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 659985283709 - 2⁴ = 659985283693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659985283703) 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, 4355204 + ... + 4504194.

It is an arithmetic number, because the mean of its divisors is an integer number (83351041536).

Almost surely, 2^659985283709 is an apocalyptic number.

It is an amenable number.

659985283709 is a deficient number, since it is larger than the sum of its proper divisors (6823048579).

659985283709 is a wasteful number, since it uses less digits than its factorization.

659985283709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194755.

The product of its (nonzero) digits is 293932800, while the sum is 71.

The spelling of 659985283709 in words is "six hundred fifty-nine billion, nine hundred eighty-five million, two hundred eighty-three thousand, seven hundred nine".