680120559 has 12 divisors (see below), whose sum is σ = 994832800. Its totient is φ = 447673824.

The previous prime is 680120543. The next prime is 680120629. The reversal of 680120559 is 955021086.

It is a happy number.

680120559 is a `hidden beast` number, since 6 + 80 + 1 + 20 + 559 = 666.

680120559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 680120559 - 2⁴ = 680120543 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 (680125559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 477574 + ... + 478995.

Almost surely, 2^680120559 is an apocalyptic number.

680120559 is a deficient number, since it is larger than the sum of its proper divisors (314712241).

680120559 is a wasteful number, since it uses less digits than its factorization.

680120559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956654 (or 956651 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 680120559 is about 26079.1211316639. The cubic root of 680120559 is about 879.4178997322.

The spelling of 680120559 in words is "six hundred eighty million, one hundred twenty thousand, five hundred fifty-nine".