659228805 has 48 divisors (see below), whose sum is σ = 1212971760. Its totient is φ = 330061824.

The previous prime is 659228797. The next prime is 659228821. The reversal of 659228805 is 508822956.

It can be written as a sum of positive squares in 8 ways, for example, as 22524516 + 636704289 = 4746^2 + 25233^2 .

It is not a de Polignac number, because 659228805 - 2³ = 659228797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 388539 + ... + 390231.

It is an arithmetic number, because the mean of its divisors is an integer number (25270245).

Almost surely, 2^659228805 is an apocalyptic number.

It is an amenable number.

659228805 is a deficient number, since it is larger than the sum of its proper divisors (553742955).

659228805 is a wasteful number, since it uses less digits than its factorization.

659228805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230 (or 2227 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 659228805 is about 25675.4514079110. The cubic root of 659228805 is about 870.3195219542.

The spelling of 659228805 in words is "six hundred fifty-nine million, two hundred twenty-eight thousand, eight hundred five".