664110 has 48 divisors (see below), whose sum is σ = 1774656. Its totient is φ = 172224.

The previous prime is 664109. The next prime is 664117. The reversal of 664110 is 11466.

664110 is a `hidden beast` number, since 664 + 1 + 1 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4152 + ... + 4308.

It is an arithmetic number, because the mean of its divisors is an integer number (36972).

2⁶⁶⁴¹¹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 664110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (887328).

664110 is an abundant number, since it is smaller than the sum of its proper divisors (1110546).

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

664110 is a wasteful number, since it uses less digits than its factorization.

664110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 664110 is about 814.9294447988. The cubic root of 664110 is about 87.2462307110.

Adding to 664110 its sum of digits (18), we get a triangular number (664128 = T₁₁₅₂).

Adding to 664110 its reverse (11466), we get a palindrome (675576).

The spelling of 664110 in words is "six hundred sixty-four thousand, one hundred ten".