61060655080 has 64 divisors (see below), whose sum is σ = 145880695440. Its totient is φ = 22922330112.

The previous prime is 61060655077. The next prime is 61060655113. The reversal of 61060655080 is 8055606016.

It can be written as a sum of positive squares in 8 ways, for example, as 51768080676 + 9292574404 = 227526^2 + 96398^2 .

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, 112852 + ... + 367228.

Almost surely, 2^61060655080 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 61060655080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72940347720).

61060655080 is an abundant number, since it is smaller than the sum of its proper divisors (84820040360).

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

61060655080 is a wasteful number, since it uses less digits than its factorization.

61060655080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254758 (or 254754 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The spelling of 61060655080 in words is "sixty-one billion, sixty million, six hundred fifty-five thousand, eighty".