6000000561 has 20 divisors (see below), whose sum is σ = 9031399344. Its totient is φ = 3969459000.

The previous prime is 6000000551. The next prime is 6000000569. The reversal of 6000000561 is 1650000006.

6000000561 is a `hidden beast` number, since 600 + 0 + 0 + 0 + 0 + 5 + 61 = 666.

It is not a de Polignac number, because 6000000561 - 2⁹ = 6000000049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6000000569) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 272115 + ... + 293336.

Almost surely, 2^6000000561 is an apocalyptic number.

It is an amenable number.

6000000561 is a deficient number, since it is larger than the sum of its proper divisors (3031398783).

6000000561 is a wasteful number, since it uses less digits than its factorization.

6000000561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565594 (or 565585 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 6000000561 is about 77459.6705453877. The cubic root of 6000000561 is about 1817.1206494657.

Adding to 6000000561 its reverse (1650000006), we get a palindrome (7650000567).

The spelling of 6000000561 in words is "six billion, five hundred sixty-one", and thus it is an aban number.