660245732 has 6 divisors (see below), whose sum is σ = 1155430038. Its totient is φ = 330122864.

The previous prime is 660245731. The next prime is 660245743. The reversal of 660245732 is 237542066.

660245732 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 571018816 + 89226916 = 23896^2 + 9446^2 .

It is a junction number, because it is equal to n+sod(n) for n = 660245692 and 660245701.

It is not an unprimeable number, because it can be changed into a prime (660245731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82530713 + ... + 82530720.

It is an arithmetic number, because the mean of its divisors is an integer number (192571673).

Almost surely, 2^660245732 is an apocalyptic number.

It is an amenable number.

660245732 is a deficient number, since it is larger than the sum of its proper divisors (495184306).

660245732 is a wasteful number, since it uses less digits than its factorization.

660245732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165061437 (or 165061435 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 660245732 is about 25695.2472648153. The cubic root of 660245732 is about 870.7668106192.

Adding to 660245732 its reverse (237542066), we get a palindrome (897787798).

The spelling of 660245732 in words is "six hundred sixty million, two hundred forty-five thousand, seven hundred thirty-two".