11611060560561 has 16 divisors (see below), whose sum is σ = 19301503269888. Its totient is φ = 6031719771600.

The previous prime is 11611060560509. The next prime is 11611060560587. The reversal of 11611060560561 is 16506506011611.

11611060560561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11611060560561 - 2²⁵ = 11611027006129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11611060560461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25132165485 + ... + 25132165946.

It is an arithmetic number, because the mean of its divisors is an integer number (1206343954368).

Almost surely, 2^{11611060560561} is an apocalyptic number.

11611060560561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11611060560561 is a deficient number, since it is larger than the sum of its proper divisors (7690442709327).

11611060560561 is a wasteful number, since it uses less digits than its factorization.

11611060560561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50264331452.

The product of its (nonzero) digits is 32400, while the sum is 39.

The spelling of 11611060560561 in words is "eleven trillion, six hundred eleven billion, sixty million, five hundred sixty thousand, five hundred sixty-one".