6656720602 has 16 divisors (see below), whose sum is σ = 11444227200. Its totient is φ = 2844703728.

The previous prime is 6656720563. The next prime is 6656720633. The reversal of 6656720602 is 2060276566.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676318 + ... + 686089.

It is an arithmetic number, because the mean of its divisors is an integer number (715264200).

Almost surely, 2^6656720602 is an apocalyptic number.

6656720602 is a deficient number, since it is larger than the sum of its proper divisors (4787506598).

6656720602 is a wasteful number, since it uses less digits than its factorization.

6656720602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362765.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 6656720602 is about 81588.7284004353. The cubic root of 6656720602 is about 1881.1356314000.

The spelling of 6656720602 in words is "six billion, six hundred fifty-six million, seven hundred twenty thousand, six hundred two".