660102 has 8 divisors (see below), whose sum is σ = 1320216. Its totient is φ = 220032.

The previous prime is 660097. The next prime is 660103. The reversal of 660102 is 201066.

It is a sphenic number, since it is the product of 3 distinct primes.

660102 is an admirable number.

It is a Smith number, since the sum of its digits (15) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660103) 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 3 ways as a sum of consecutive naturals, for example, 55003 + ... + 55014.

It is an arithmetic number, because the mean of its divisors is an integer number (165027).

2⁶⁶⁰¹⁰² is an apocalyptic number.

660102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

660102 is a wasteful number, since it uses less digits than its factorization.

660102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110022.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 660102 is about 812.4666146987. The cubic root of 660102 is about 87.0703618925.

Adding to 660102 its reverse (201066), we get a palindrome (861168).

The spelling of 660102 in words is "six hundred sixty thousand, one hundred two".