660241345 has 16 divisors (see below), whose sum is σ = 803960640. Its totient is φ = 520446784.

The previous prime is 660241319. The next prime is 660241349. The reversal of 660241345 is 543142066.

It is a cyclic number.

It is not a de Polignac number, because 660241345 - 2⁷ = 660241217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (660241349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171987 + ... + 175783.

It is an arithmetic number, because the mean of its divisors is an integer number (50247540).

Almost surely, 2^660241345 is an apocalyptic number.

It is an amenable number.

660241345 is a deficient number, since it is larger than the sum of its proper divisors (143719295).

660241345 is a wasteful number, since it uses less digits than its factorization.

660241345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 660241345 is about 25695.1618986921. The cubic root of 660241345 is about 870.7648820128.

The spelling of 660241345 in words is "six hundred sixty million, two hundred forty-one thousand, three hundred forty-five".