6650331669 has 6 divisors (see below), whose sum is σ = 9606034646. Its totient is φ = 4433554440.

The previous prime is 6650331659. The next prime is 6650331671. The reversal of 6650331669 is 9661330566.

It can be written as a sum of positive squares in only one way, i.e., 3873568644 + 2776763025 = 62238^2 + 52695^2 .

It is not a de Polignac number, because 6650331669 - 2⁹ = 6650331157 is a prime.

It is a super-5 number, since 5×6650331669⁵ (a number of 50 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6650331659) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 369462862 + ... + 369462879.

Almost surely, 2^6650331669 is an apocalyptic number.

It is an amenable number.

6650331669 is a deficient number, since it is larger than the sum of its proper divisors (2955702977).

6650331669 is a wasteful number, since it uses less digits than its factorization.

6650331669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738925747 (or 738925744 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 45.

The square root of 6650331669 is about 81549.5657192606. The cubic root of 6650331669 is about 1880.5336184233.

The spelling of 6650331669 in words is "six billion, six hundred fifty million, three hundred thirty-one thousand, six hundred sixty-nine".