7065220660 has 12 divisors (see below), whose sum is σ = 14836963428. Its totient is φ = 2826088256.

The previous prime is 7065220639. The next prime is 7065220663. The reversal of 7065220660 is 660225607.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1401454096 + 5663766564 = 37436^2 + 75258^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7065220663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176630497 + ... + 176630536.

It is an arithmetic number, because the mean of its divisors is an integer number (1236413619).

Almost surely, 2^7065220660 is an apocalyptic number.

It is an amenable number.

7065220660 is an abundant number, since it is smaller than the sum of its proper divisors (7771742768).

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

7065220660 is a wasteful number, since it uses less digits than its factorization.

7065220660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353261042 (or 353261040 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 7065220660 is about 84054.8669620029. The cubic root of 7065220660 is about 1918.8539040381.

The spelling of 7065220660 in words is "seven billion, sixty-five million, two hundred twenty thousand, six hundred sixty".