61105605511061 has 16 divisors (see below), whose sum is σ = 64769221036800. Its totient is φ = 57546414038400.

The previous prime is 61105605511009. The next prime is 61105605511193. The reversal of 61105605511061 is 16011550650116.

It is a happy number.

61105605511061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 61105605511061 - 2¹⁴ = 61105605494677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61105605514061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 631121 + ... + 11072918.

It is an arithmetic number, because the mean of its divisors is an integer number (4048076314800).

Almost surely, 2^{61105605511061} is an apocalyptic number.

It is an amenable number.

61105605511061 is a deficient number, since it is larger than the sum of its proper divisors (3663615525739).

61105605511061 is a wasteful number, since it uses less digits than its factorization.

61105605511061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11708500.

The product of its (nonzero) digits is 27000, while the sum is 38.

The spelling of 61105605511061 in words is "sixty-one trillion, one hundred five billion, six hundred five million, five hundred eleven thousand, sixty-one".