6551522066 has 8 divisors (see below), whose sum is σ = 10166155020. Its totient is φ = 3162803728.

The previous prime is 6551522041. The next prime is 6551522071. The reversal of 6551522066 is 6602251556.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6343326025 + 208196041 = 79645^2 + 14429^2 .

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56478581 + ... + 56478696.

Almost surely, 2^6551522066 is an apocalyptic number.

6551522066 is a deficient number, since it is larger than the sum of its proper divisors (3614632954).

6551522066 is a wasteful number, since it uses less digits than its factorization.

6551522066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112957308.

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 6551522066 is about 80941.4730901285. The cubic root of 6551522066 is about 1871.1735478291.

The spelling of 6551522066 in words is "six billion, five hundred fifty-one million, five hundred twenty-two thousand, sixty-six".