660283056 has 160 divisors (see below), whose sum is σ = 1970558400. Its totient is φ = 211507200.

The previous prime is 660283037. The next prime is 660283061. The reversal of 660283056 is 650382066.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 660283056.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1614180 + ... + 1614588.

It is an arithmetic number, because the mean of its divisors is an integer number (12315990).

Almost surely, 2^660283056 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 660283056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (985279200).

660283056 is an abundant number, since it is smaller than the sum of its proper divisors (1310275344).

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

660283056 is a wasteful number, since it uses less digits than its factorization.

660283056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 660283056 is about 25695.9735367236. The cubic root of 660283056 is about 870.7832185950.

The spelling of 660283056 in words is "six hundred sixty million, two hundred eighty-three thousand, fifty-six".