561060505061 has 12 divisors (see below), whose sum is σ = 652674687840. Its totient is φ = 480899817720.

The previous prime is 561060505037. The next prime is 561060505097. The reversal of 561060505061 is 160505060165.

It is a de Polignac number, because none of the positive numbers 2^k-561060505061 is a prime.

It is a super-2 number, since 2×561060505061² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561060505661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4185800 + ... + 4317758.

It is an arithmetic number, because the mean of its divisors is an integer number (54389557320).

Almost surely, 2^561060505061 is an apocalyptic number.

It is an amenable number.

561060505061 is a deficient number, since it is larger than the sum of its proper divisors (91614182779).

561060505061 is a wasteful number, since it uses less digits than its factorization.

561060505061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218744 (or 218737 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 561060505061 in words is "five hundred sixty-one billion, sixty million, five hundred five thousand, sixty-one".