660230064 has 180 divisors, whose sum is σ = 2061722208. Its totient is φ = 196058880.

The previous prime is 660230047. The next prime is 660230083. The reversal of 660230064 is 460032066.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1798809 + ... + 1799175.

Almost surely, 2^660230064 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 660230064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1030861104).

660230064 is an abundant number, since it is smaller than the sum of its proper divisors (1401492144).

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

660230064 is a wasteful number, since it uses less digits than its factorization.

660230064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 660230064 is about 25694.9423817217. The cubic root of 660230064 is about 870.7599226371.

The spelling of 660230064 in words is "six hundred sixty million, two hundred thirty thousand, sixty-four".