6001661105 has 24 divisors (see below), whose sum is σ = 7943493096. Its totient is φ = 4349818880.

The previous prime is 6001661093. The next prime is 6001661207. The reversal of 6001661105 is 5011661006.

It can be written as a sum of positive squares in 4 ways, for example, as 4165024369 + 1836636736 = 64537^2 + 42856^2 .

It is not a de Polignac number, because 6001661105 - 2²⁶ = 5934552241 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160337 + ... + 194193.

It is an arithmetic number, because the mean of its divisors is an integer number (330978879).

Almost surely, 2^6001661105 is an apocalyptic number.

It is an amenable number.

6001661105 is a deficient number, since it is larger than the sum of its proper divisors (1941831991).

6001661105 is a wasteful number, since it uses less digits than its factorization.

6001661105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34177 (or 34166 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 6001661105 is about 77470.3885687945. The cubic root of 6001661105 is about 1817.2882678096.

Subtracting from 6001661105 its reverse (5011661006), we obtain a palindrome (990000099).

It can be divided in two parts, 60016 and 61105, that added together give a palindrome (121121).

The spelling of 6001661105 in words is "six billion, one million, six hundred sixty-one thousand, one hundred five".