6641010 has 48 divisors (see below), whose sum is σ = 17446104. Its totient is φ = 1752576.

The previous prime is 6640993. The next prime is 6641021. The reversal of 6641010 is 101466.

6641010 is a `hidden beast` number, since 664 + 1 + 0 + 1 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2368521 + 4272489 = 1539^2 + 2067^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9844 + ... + 10496.

Almost surely, 2^6641010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6641010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8723052).

6641010 is an abundant number, since it is smaller than the sum of its proper divisors (10805094).

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

6641010 is a wasteful number, since it uses less digits than its factorization.

6641010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779 (or 776 counting only the distinct ones).

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

The square root of 6641010 is about 2577.0157159009. The cubic root of 6641010 is about 187.9654569098.

Adding to 6641010 its reverse (101466), we get a palindrome (6742476).

The spelling of 6641010 in words is "six million, six hundred forty-one thousand, ten".