6005043661 has 8 divisors (see below), whose sum is σ = 6018227424. Its totient is φ = 5991876240.

The previous prime is 6005043647. The next prime is 6005043677. The reversal of 6005043661 is 1663405006.

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 6005043661 - 2¹¹ = 6005041613 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 (6005043631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964986 + ... + 971188.

It is an arithmetic number, because the mean of its divisors is an integer number (752278428).

Almost surely, 2^6005043661 is an apocalyptic number.

It is an amenable number.

6005043661 is a deficient number, since it is larger than the sum of its proper divisors (13183763).

6005043661 is an equidigital number, since it uses as much as digits as its factorization.

6005043661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8171.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 6005043661 is about 77492.2167769125. The cubic root of 6005043661 is about 1817.6296135776.

Adding to 6005043661 its reverse (1663405006), we get a palindrome (7668448667).

The spelling of 6005043661 in words is "six billion, five million, forty-three thousand, six hundred sixty-one".