6611165601 has 8 divisors (see below), whose sum is σ = 8824298784. Its totient is φ = 4402738080.

The previous prime is 6611165599. The next prime is 6611165621. The reversal of 6611165601 is 1065611166.

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

It is not a de Polignac number, because 6611165601 - 2¹ = 6611165599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6611165621) 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, 1173135 + ... + 1178756.

It is an arithmetic number, because the mean of its divisors is an integer number (1103037348).

Almost surely, 2^6611165601 is an apocalyptic number.

It is an amenable number.

6611165601 is a deficient number, since it is larger than the sum of its proper divisors (2213133183).

6611165601 is a wasteful number, since it uses less digits than its factorization.

6611165601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352831.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 6611165601 is about 81309.0745304606. The cubic root of 6611165601 is about 1876.8346464221.

Adding to 6611165601 its reverse (1065611166), we get a palindrome (7676776767).

The spelling of 6611165601 in words is "six billion, six hundred eleven million, one hundred sixty-five thousand, six hundred one".