660010 has 16 divisors (see below), whose sum is σ = 1279656. Its totient is φ = 243648.

The previous prime is 660001. The next prime is 660013. The reversal of 660010 is 10066.

It can be written as a sum of positive squares in 4 ways, for example, as 582169 + 77841 = 763^2 + 279^2 .

It is a super-2 number, since 2×660010² = 871226400200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (660013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2409 + ... + 2668.

2⁶⁶⁰⁰¹⁰ is an apocalyptic number.

660010 is a deficient number, since it is larger than the sum of its proper divisors (619646).

660010 is a wasteful number, since it uses less digits than its factorization.

660010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5097.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 660010 is about 812.4099950148. The cubic root of 660010 is about 87.0663166362.

Adding to 660010 its reverse (10066), we get a palindrome (670076).

The spelling of 660010 in words is "six hundred sixty thousand, ten".