611065212061 has 8 divisors (see below), whose sum is σ = 632167428600. Its totient is φ = 589965062400.

The previous prime is 611065212029. The next prime is 611065212071. The reversal of 611065212061 is 160212560116.

It can be written as a sum of positive squares in 4 ways, for example, as 102403840036 + 508661372025 = 320006^2 + 713205^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 611065212061 - 2⁵ = 611065212029 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 (611065212071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97161 + ... + 1109761.

It is an arithmetic number, because the mean of its divisors is an integer number (79020928575).

Almost surely, 2^611065212061 is an apocalyptic number.

It is an amenable number.

611065212061 is a deficient number, since it is larger than the sum of its proper divisors (21102216539).

611065212061 is a wasteful number, since it uses less digits than its factorization.

611065212061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033439.

The product of its (nonzero) digits is 4320, while the sum is 31.

Adding to 611065212061 its reverse (160212560116), we get a palindrome (771277772177).

The spelling of 611065212061 in words is "six hundred eleven billion, sixty-five million, two hundred twelve thousand, sixty-one".