6661030 has 16 divisors (see below), whose sum is σ = 12511584. Its totient is φ = 2548480.

The previous prime is 6661021. The next prime is 6661037. The reversal of 6661030 is 301666.

It is a junction number, because it is equal to n+sod(n) for n = 6660992 and 6661010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6661037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14251 + ... + 14710.

It is an arithmetic number, because the mean of its divisors is an integer number (781974).

Almost surely, 2^6661030 is an apocalyptic number.

6661030 is a deficient number, since it is larger than the sum of its proper divisors (5850554).

6661030 is a wasteful number, since it uses less digits than its factorization.

6661030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28991.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 6661030 is about 2580.8971308442. The cubic root of 6661030 is about 188.1541477557.

Adding to 6661030 its reverse (301666), we get a palindrome (6962696).

The spelling of 6661030 in words is "six million, six hundred sixty-one thousand, thirty".