3005411661 has 16 divisors (see below), whose sum is σ = 5088528000. Its totient is φ = 1717377984.

The previous prime is 3005411641. The next prime is 3005411671. The reversal of 3005411661 is 1661145003.

3005411661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3005411661 - 2²⁹ = 2468540749 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3005411641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7950636 + ... + 7951013.

It is an arithmetic number, because the mean of its divisors is an integer number (318033000).

Almost surely, 2^3005411661 is an apocalyptic number.

It is an amenable number.

3005411661 is a deficient number, since it is larger than the sum of its proper divisors (2083116339).

3005411661 is a wasteful number, since it uses less digits than its factorization.

3005411661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15901665 (or 15901659 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 3005411661 is about 54821.6349719707. The cubic root of 3005411661 is about 1443.1162677916.

Adding to 3005411661 its reverse (1661145003), we get a palindrome (4666556664).

The spelling of 3005411661 in words is "three billion, five million, four hundred eleven thousand, six hundred sixty-one".