5561664412 has 12 divisors (see below), whose sum is σ = 9736687296. Its totient is φ = 2779753760.

The previous prime is 5561664313. The next prime is 5561664421. The reversal of 5561664412 is 2144661655.

It is a super-3 number, since 3×5561664412³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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, 257953 + ... + 278680.

It is an arithmetic number, because the mean of its divisors is an integer number (811390608).

Almost surely, 2^5561664412 is an apocalyptic number.

It is an amenable number.

5561664412 is a deficient number, since it is larger than the sum of its proper divisors (4175022884).

5561664412 is a wasteful number, since it uses less digits than its factorization.

5561664412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539228 (or 539226 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 5561664412 is about 74576.5674458137. The cubic root of 5561664412 is about 1771.7465403759.

The spelling of 5561664412 in words is "five billion, five hundred sixty-one million, six hundred sixty-four thousand, four hundred twelve".