561160551065 has 4 divisors (see below), whose sum is σ = 673392661284. Its totient is φ = 448928440848.

The previous prime is 561160551053. The next prime is 561160551121. The reversal of 561160551065 is 560155061165.

561160551065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 114647928409 + 446512622656 = 338597^2 + 668216^2 .

It is a cyclic number.

It is not a de Polignac number, because 561160551065 - 2⁶ = 561160551001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56116055102 + ... + 56116055111.

It is an arithmetic number, because the mean of its divisors is an integer number (168348165321).

Almost surely, 2^561160551065 is an apocalyptic number.

It is an amenable number.

561160551065 is a deficient number, since it is larger than the sum of its proper divisors (112232110219).

561160551065 is a wasteful number, since it uses less digits than its factorization.

561160551065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112232110218.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 561160551065 in words is "five hundred sixty-one billion, one hundred sixty million, five hundred fifty-one thousand, sixty-five".