659953320 has 128 divisors (see below), whose sum is σ = 2177763840. Its totient is φ = 158976000.

The previous prime is 659953289. The next prime is 659953321. The reversal of 659953320 is 23359956.

659953320 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (659953321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68820 + ... + 77820.

It is an arithmetic number, because the mean of its divisors is an integer number (17013780).

Almost surely, 2^659953320 is an apocalyptic number.

659953320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 659953320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1088881920).

659953320 is an abundant number, since it is smaller than the sum of its proper divisors (1517810520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

659953320 is a wasteful number, since it uses less digits than its factorization.

659953320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9075 (or 9071 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 42.

The square root of 659953320 is about 25689.5566329978. The cubic root of 659953320 is about 870.6382421933.

The spelling of 659953320 in words is "six hundred fifty-nine million, nine hundred fifty-three thousand, three hundred twenty".