669560558608 has 10 divisors (see below), whose sum is σ = 1297273582334. Its totient is φ = 334780279296.

The previous prime is 669560558599. The next prime is 669560558609. The reversal of 669560558608 is 806855065966.

It can be written as a sum of positive squares in only one way, i.e., 334861283584 + 334699275024 = 578672^2 + 578532^2 .

It is a super-2 number, since 2×669560558608² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 669560558608.

It is not an unprimeable number, because it can be changed into a prime (669560558609) by changing a digit.

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 as a sum of consecutive naturals, namely, 20923767441 + ... + 20923767472.

Almost surely, 2^669560558608 is an apocalyptic number.

It is an amenable number.

669560558608 is a deficient number, since it is larger than the sum of its proper divisors (627713023726).

669560558608 is a wasteful number, since it uses less digits than its factorization.

669560558608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41847534921 (or 41847534915 counting only the distinct ones).

The product of its (nonzero) digits is 93312000, while the sum is 64.

The spelling of 669560558608 in words is "six hundred sixty-nine billion, five hundred sixty million, five hundred fifty-eight thousand, six hundred eight".