6651022066 has 8 divisors (see below), whose sum is σ = 10743958764. Its totient is φ = 3069702480.

The previous prime is 6651022051. The next prime is 6651022073. The reversal of 6651022066 is 6602201566.

It can be written as a sum of positive squares in 2 ways, for example, as 5547121441 + 1103900625 = 74479^2 + 33225^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 127904245 + ... + 127904296.

Almost surely, 2^6651022066 is an apocalyptic number.

6651022066 is a deficient number, since it is larger than the sum of its proper divisors (4092936698).

6651022066 is a wasteful number, since it uses less digits than its factorization.

6651022066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255808556.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 6651022066 is about 81553.7985994521. The cubic root of 6651022066 is about 1880.5986913604.

The spelling of 6651022066 in words is "six billion, six hundred fifty-one million, twenty-two thousand, sixty-six".