6561066030 has 16 divisors (see below), whose sum is σ = 15746558544. Its totient is φ = 1749617600.

The previous prime is 6561066023. The next prime is 6561066049. The reversal of 6561066030 is 306601656.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6561065982 and 6561066000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109351071 + ... + 109351130.

It is an arithmetic number, because the mean of its divisors is an integer number (984159909).

Almost surely, 2^6561066030 is an apocalyptic number.

6561066030 is an abundant number, since it is smaller than the sum of its proper divisors (9185492514).

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

6561066030 is a wasteful number, since it uses less digits than its factorization.

6561066030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218702211.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 6561066030 is about 81000.4075915671. The cubic root of 6561066030 is about 1872.0817209239.

Adding to 6561066030 its reverse (306601656), we get a palindrome (6867667686).

The spelling of 6561066030 in words is "six billion, five hundred sixty-one million, sixty-six thousand, thirty".