11010560561 has 32 divisors (see below), whose sum is σ = 15653046528. Its totient is φ = 7453808640.

The previous prime is 11010560497. The next prime is 11010560593. The reversal of 11010560561 is 16506501011.

It is a cyclic number.

It is not a de Polignac number, because 11010560561 - 2⁶ = 11010560497 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11010560561.

It is not an unprimeable number, because it can be changed into a prime (11010560861) 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, 306500 + ... + 340533.

It is an arithmetic number, because the mean of its divisors is an integer number (489157704).

Almost surely, 2^11010560561 is an apocalyptic number.

11010560561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11010560561 is a deficient number, since it is larger than the sum of its proper divisors (4642485967).

11010560561 is a wasteful number, since it uses less digits than its factorization.

11010560561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647081.

The product of its (nonzero) digits is 900, while the sum is 26.

The spelling of 11010560561 in words is "eleven billion, ten million, five hundred sixty thousand, five hundred sixty-one".