3611110061 has 4 divisors (see below), whose sum is σ = 3888887772. Its totient is φ = 3333332352.

The previous prime is 3611110039. The next prime is 3611110067. The reversal of 3611110061 is 1600111163.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1230255625 + 2380854436 = 35075^2 + 48794^2 .

It is a cyclic number.

It is not a de Polignac number, because 3611110061 - 2¹⁸ = 3610847917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3611110067) 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 3 ways as a sum of consecutive naturals, for example, 138888836 + ... + 138888861.

It is an arithmetic number, because the mean of its divisors is an integer number (972221943).

Almost surely, 2^3611110061 is an apocalyptic number.

It is an amenable number.

3611110061 is a deficient number, since it is larger than the sum of its proper divisors (277777711).

3611110061 is a wasteful number, since it uses less digits than its factorization.

3611110061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277777710.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 3611110061 is about 60092.5125202799. The cubic root of 3611110061 is about 1534.1938650381.

The spelling of 3611110061 in words is "three billion, six hundred eleven million, one hundred ten thousand, sixty-one".