61051005061 has 16 divisors (see below), whose sum is σ = 62209350000. Its totient is φ = 59903940096.

The previous prime is 61051005011. The next prime is 61051005079. The reversal of 61051005061 is 16050015016.

61051005061 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 6196680961 + 54854324100 = 78719^2 + 234210^2 .

It is a cyclic number.

It is not a de Polignac number, because 61051005061 - 2⁷ = 61051004933 is a prime.

It is a super-2 number, since 2×61051005061² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61051005011) 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, 26905435 + ... + 26907703.

It is an arithmetic number, because the mean of its divisors is an integer number (3888084375).

Almost surely, 2^61051005061 is an apocalyptic number.

It is an amenable number.

61051005061 is a deficient number, since it is larger than the sum of its proper divisors (1158344939).

61051005061 is a wasteful number, since it uses less digits than its factorization.

61051005061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4536.

The product of its (nonzero) digits is 900, while the sum is 25.

The spelling of 61051005061 in words is "sixty-one billion, fifty-one million, five thousand, sixty-one".