6611298661 has 8 divisors (see below), whose sum is σ = 7213670784. Its totient is φ = 6009150720.

The previous prime is 6611298649. The next prime is 6611298671. The reversal of 6611298661 is 1668921166.

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 6611298661 - 2⁹ = 6611298149 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 (6611298611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8901 + ... + 115333.

It is an arithmetic number, because the mean of its divisors is an integer number (901708848).

Almost surely, 2^6611298661 is an apocalyptic number.

It is an amenable number.

6611298661 is a deficient number, since it is larger than the sum of its proper divisors (602372123).

6611298661 is a wasteful number, since it uses less digits than its factorization.

6611298661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112091.

The product of its digits is 186624, while the sum is 46.

The square root of 6611298661 is about 81309.8927621971. The cubic root of 6611298661 is about 1876.8472377440.

The spelling of 6611298661 in words is "six billion, six hundred eleven million, two hundred ninety-eight thousand, six hundred sixty-one".