5661305912 has 16 divisors (see below), whose sum is σ = 10873850400. Its totient is φ = 2761612480.

The previous prime is 5661305893. The next prime is 5661305917. The reversal of 5661305912 is 2195031665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5661305917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8629712 + ... + 8630367.

It is an arithmetic number, because the mean of its divisors is an integer number (679615650).

Almost surely, 2^5661305912 is an apocalyptic number.

It is an amenable number.

5661305912 is a deficient number, since it is larger than the sum of its proper divisors (5212544488).

5661305912 is a wasteful number, since it uses less digits than its factorization.

5661305912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17260126 (or 17260122 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 5661305912 is about 75241.6501148134. The cubic root of 5661305912 is about 1782.2647090037.

The spelling of 5661305912 in words is "five billion, six hundred sixty-one million, three hundred five thousand, nine hundred twelve".