660955085 has 16 divisors (see below), whose sum is σ = 912233856. Its totient is φ = 450335808.

The previous prime is 660955079. The next prime is 660955093. The reversal of 660955085 is 580559066.

It is a cyclic number.

It is not a de Polignac number, because 660955085 - 2¹⁰ = 660954061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54647 + ... + 65636.

It is an arithmetic number, because the mean of its divisors is an integer number (57014616).

Almost surely, 2^660955085 is an apocalyptic number.

It is an amenable number.

660955085 is a deficient number, since it is larger than the sum of its proper divisors (251278771).

660955085 is a wasteful number, since it uses less digits than its factorization.

660955085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120452.

The product of its (nonzero) digits is 324000, while the sum is 44.

The square root of 660955085 is about 25709.0467540125. The cubic root of 660955085 is about 871.0785430262.

The spelling of 660955085 in words is "six hundred sixty million, nine hundred fifty-five thousand, eighty-five".