659623648 has 12 divisors (see below), whose sum is σ = 1298634120. Its totient is φ = 329811808.

The previous prime is 659623633. The next prime is 659623651. The reversal of 659623648 is 846326956.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10306588 + ... + 10306651.

It is an arithmetic number, because the mean of its divisors is an integer number (108219510).

Almost surely, 2^659623648 is an apocalyptic number.

It is an amenable number.

659623648 is a deficient number, since it is larger than the sum of its proper divisors (639010472).

659623648 is a wasteful number, since it uses less digits than its factorization.

659623648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20613249 (or 20613241 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 49.

The square root of 659623648 is about 25683.1393719693. The cubic root of 659623648 is about 870.4932456466.

The spelling of 659623648 in words is "six hundred fifty-nine million, six hundred twenty-three thousand, six hundred forty-eight".