2004341661 has 12 divisors (see below), whose sum is σ = 3308754592. Its totient is φ = 1145338056.

The previous prime is 2004341659. The next prime is 2004341723. The reversal of 2004341661 is 1661434002.

2004341661 is a `hidden beast` number, since 200 + 43 + 416 + 6 + 1 = 666.

It is not a de Polignac number, because 2004341661 - 2¹ = 2004341659 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004341161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15907411 + ... + 15907536.

Almost surely, 2^2004341661 is an apocalyptic number.

2004341661 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2004341661 is a deficient number, since it is larger than the sum of its proper divisors (1304412931).

2004341661 is a wasteful number, since it uses less digits than its factorization.

2004341661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31814960 (or 31814957 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2004341661 is about 44769.8744805031. The cubic root of 2004341661 is about 1260.8320826609.

Adding to 2004341661 its reverse (1661434002), we get a palindrome (3665775663).

It can be divided in two parts, 2004341 and 661, that added together give a palindrome (2005002).

The spelling of 2004341661 in words is "two billion, four million, three hundred forty-one thousand, six hundred sixty-one".