2016711661 has 8 divisors (see below), whose sum is σ = 2126079200. Its totient is φ = 1907666640.

The previous prime is 2016711637. The next prime is 2016711703. The reversal of 2016711661 is 1661176102.

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 2016711661 - 2⁹ = 2016711149 is a prime.

It is a super-2 number, since 2×2016711661² = 8134251847226757842, which 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 (2016711161) 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 7 ways as a sum of consecutive naturals, for example, 67731 + ... + 92848.

It is an arithmetic number, because the mean of its divisors is an integer number (265759900).

Almost surely, 2^2016711661 is an apocalyptic number.

It is an amenable number.

2016711661 is a deficient number, since it is larger than the sum of its proper divisors (109367539).

2016711661 is a wasteful number, since it uses less digits than its factorization.

2016711661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161259.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 2016711661 is about 44907.8129171306. The cubic root of 2016711661 is about 1263.4205497547.

Adding to 2016711661 its reverse (1661176102), we get a palindrome (3677887763).

The spelling of 2016711661 in words is "two billion, sixteen million, seven hundred eleven thousand, six hundred sixty-one".