659766849 has 48 divisors (see below), whose sum is σ = 1098011520. Its totient is φ = 344736000.

The previous prime is 659766839. The next prime is 659766853. The reversal of 659766849 is 948667956.

659766849 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 659766849 - 2²¹ = 657669697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 659766792 and 659766801.

It is not an unprimeable number, because it can be changed into a prime (659766839) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 218349 + ... + 221349.

It is an arithmetic number, because the mean of its divisors is an integer number (22875240).

Almost surely, 2^659766849 is an apocalyptic number.

It is an amenable number.

659766849 is a deficient number, since it is larger than the sum of its proper divisors (438244671).

659766849 is a wasteful number, since it uses less digits than its factorization.

659766849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078 (or 3059 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 60.

The square root of 659766849 is about 25685.9270613307. The cubic root of 659766849 is about 870.5562343342.

The spelling of 659766849 in words is "six hundred fifty-nine million, seven hundred sixty-six thousand, eight hundred forty-nine".