660559248 has 60 divisors (see below), whose sum is σ = 1855579648. Its totient is φ = 219360960.

The previous prime is 660559243. The next prime is 660559267. The reversal of 660559248 is 842955066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660559243) 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, 30561 + ... + 47487.

Almost surely, 2^660559248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 660559248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (927789824).

660559248 is an abundant number, since it is smaller than the sum of its proper divisors (1195020400).

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

660559248 is a wasteful number, since it uses less digits than its factorization.

660559248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17212 (or 17203 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 660559248 is about 25701.3472020437. The cubic root of 660559248 is about 870.9046159415.

The spelling of 660559248 in words is "six hundred sixty million, five hundred fifty-nine thousand, two hundred forty-eight".