660112712 has 48 divisors (see below), whose sum is σ = 1443582000. Its totient is φ = 282160032.

The previous prime is 660112711. The next prime is 660112753. The reversal of 660112712 is 217211066.

It is not an unprimeable number, because it can be changed into a prime (660112711) 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, 162239 + ... + 166257.

It is an arithmetic number, because the mean of its divisors is an integer number (30074625).

Almost surely, 2^660112712 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 660112712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (721791000).

660112712 is an abundant number, since it is smaller than the sum of its proper divisors (783469288).

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

660112712 is a wasteful number, since it uses less digits than its factorization.

660112712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4458 (or 4447 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 660112712 is about 25692.6587180074. The cubic root of 660112712 is about 870.7083287666.

Adding to 660112712 its reverse (217211066), we get a palindrome (877323778).

The spelling of 660112712 in words is "six hundred sixty million, one hundred twelve thousand, seven hundred twelve".