5601686928561 has 32 divisors (see below), whose sum is σ = 8767110748800. Its totient is φ = 3525135215040.

The previous prime is 5601686928559. The next prime is 5601686928577. The reversal of 5601686928561 is 1658296861065.

It is a happy number.

5601686928561 is a `hidden beast` number, since 5 + 6 + 0 + 1 + 6 + 8 + 69 + 2 + 8 + 561 = 666.

It is not a de Polignac number, because 5601686928561 - 2¹ = 5601686928559 is a prime.

It is a super-2 number, since 2×5601686928561² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5601686921561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19568130 + ... + 19852331.

It is an arithmetic number, because the mean of its divisors is an integer number (273972210900).

Almost surely, 2^{5601686928561} is an apocalyptic number.

It is an amenable number.

5601686928561 is a deficient number, since it is larger than the sum of its proper divisors (3165423820239).

5601686928561 is a wasteful number, since it uses less digits than its factorization.

5601686928561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39420766 (or 39420760 counting only the distinct ones).

The product of its (nonzero) digits is 37324800, while the sum is 63.

The spelling of 5601686928561 in words is "five trillion, six hundred one billion, six hundred eighty-six million, nine hundred twenty-eight thousand, five hundred sixty-one".