561060010561 has 4 divisors (see below), whose sum is σ = 594063540612. Its totient is φ = 528056480512.

The previous prime is 561060010531. The next prime is 561060010571. The reversal of 561060010561 is 165010060165.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 168612890625 + 392447119936 = 410625^2 + 626456^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561060010561 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561060010501) 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, 16501765000 + ... + 16501765033.

It is an arithmetic number, because the mean of its divisors is an integer number (148515885153).

Almost surely, 2^561060010561 is an apocalyptic number.

It is an amenable number.

561060010561 is a deficient number, since it is larger than the sum of its proper divisors (33003530051).

561060010561 is a wasteful number, since it uses less digits than its factorization.

561060010561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33003530050.

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 561060010561 in words is "five hundred sixty-one billion, sixty million, ten thousand, five hundred sixty-one".