6757225666 has 8 divisors (see below), whose sum is σ = 10159248204. Its totient is φ = 3370809600.

The previous prime is 6757225661. The next prime is 6757225679. The reversal of 6757225666 is 6665227576.

It can be written as a sum of positive squares in 2 ways, for example, as 5245960041 + 1511265625 = 72429^2 + 38875^2 .

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

It is not an unprimeable number, because it can be changed into a prime (6757225661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3900535 + ... + 3902266.

Almost surely, 2^6757225666 is an apocalyptic number.

6757225666 is a deficient number, since it is larger than the sum of its proper divisors (3402022538).

6757225666 is a wasteful number, since it uses less digits than its factorization.

6757225666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7803236.

The product of its digits is 6350400, while the sum is 52.

The square root of 6757225666 is about 82202.3458667695. The cubic root of 6757225666 is about 1890.5556875971. Note that the first 3 decimals are identical.

The spelling of 6757225666 in words is "six billion, seven hundred fifty-seven million, two hundred twenty-five thousand, six hundred sixty-six".