2061117711 has 16 divisors (see below), whose sum is σ = 3054336000. Its totient is φ = 1373705784.

The previous prime is 2061117673. The next prime is 2061117749. The reversal of 2061117711 is 1177111602.

2061117711 is a `hidden beast` number, since 20 + 611 + 17 + 7 + 11 = 666.

It is an interprime number because it is at equal distance from previous prime (2061117673) and next prime (2061117749).

It is not a de Polignac number, because 2061117711 - 2¹⁸ = 2060855567 is a prime.

It is a super-3 number, since 3×2061117711³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061117011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121620 + ... + 137526.

It is an arithmetic number, because the mean of its divisors is an integer number (190896000).

Almost surely, 2^2061117711 is an apocalyptic number.

2061117711 is a deficient number, since it is larger than the sum of its proper divisors (993218289).

2061117711 is a wasteful number, since it uses less digits than its factorization.

2061117711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20715 (or 20709 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 27.

The square root of 2061117711 is about 45399.5342597256. The cubic root of 2061117711 is about 1272.6264102724.

The spelling of 2061117711 in words is "two billion, sixty-one million, one hundred seventeen thousand, seven hundred eleven".