61051111060 has 48 divisors (see below), whose sum is σ = 130474244880. Its totient is φ = 23992151040.

The previous prime is 61051111031. The next prime is 61051111061. The reversal of 61051111060 is 6011115016.

61051111060 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 27434621956 + 33616489104 = 165634^2 + 183348^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61051111061) 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, 170230 + ... + 388690.

It is an arithmetic number, because the mean of its divisors is an integer number (2718213435).

Almost surely, 2^61051111060 is an apocalyptic number.

It is an amenable number.

61051111060 is an abundant number, since it is smaller than the sum of its proper divisors (69423133820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61051111060 is a wasteful number, since it uses less digits than its factorization.

61051111060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218716 (or 218714 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 22.

Adding to 61051111060 its reverse (6011115016), we get a palindrome (67062226076).

The spelling of 61051111060 in words is "sixty-one billion, fifty-one million, one hundred eleven thousand, sixty".