61060055060 has 48 divisors (see below), whose sum is σ = 132800063760. Its totient is φ = 23554728960.

The previous prime is 61060055051. The next prime is 61060055113. The reversal of 61060055060 is 6055006016.

It can be written as a sum of positive squares in 8 ways, for example, as 2397277444 + 58662777616 = 48962^2 + 242204^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448640 + ... + 568680.

It is an arithmetic number, because the mean of its divisors is an integer number (2766667995).

Almost surely, 2^61060055060 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61060055060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66400031880).

61060055060 is an abundant number, since it is smaller than the sum of its proper divisors (71740008700).

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

61060055060 is a wasteful number, since it uses less digits than its factorization.

61060055060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120956 (or 120954 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

The spelling of 61060055060 in words is "sixty-one billion, sixty million, fifty-five thousand, sixty".