660204712 has 8 divisors (see below), whose sum is σ = 1237883850. Its totient is φ = 330102352.

The previous prime is 660204709. The next prime is 660204731. The reversal of 660204712 is 217402066.

It can be written as a sum of positive squares in only one way, i.e., 653620356 + 6584356 = 25566^2 + 2566^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41262787 + ... + 41262802.

Almost surely, 2^660204712 is an apocalyptic number.

It is an amenable number.

660204712 is a deficient number, since it is larger than the sum of its proper divisors (577679138).

660204712 is a wasteful number, since it uses less digits than its factorization.

660204712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82525595 (or 82525591 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 660204712 is about 25694.4490503299. The cubic root of 660204712 is about 870.7487771343.

Adding to 660204712 its reverse (217402066), we get a palindrome (877606778).

The spelling of 660204712 in words is "six hundred sixty million, two hundred four thousand, seven hundred twelve".