2046042661 has 4 divisors (see below), whose sum is σ = 2203430572. Its totient is φ = 1888654752.

The previous prime is 2046042653. The next prime is 2046042673. The reversal of 2046042661 is 1662406402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 668222500 + 1377820161 = 25850^2 + 37119^2 .

It is a cyclic number.

It is not a de Polignac number, because 2046042661 - 2³ = 2046042653 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 (2046042611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78693936 + ... + 78693961.

It is an arithmetic number, because the mean of its divisors is an integer number (550857643).

Almost surely, 2^2046042661 is an apocalyptic number.

It is an amenable number.

2046042661 is a deficient number, since it is larger than the sum of its proper divisors (157387911).

2046042661 is a wasteful number, since it uses less digits than its factorization.

2046042661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157387910.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 2046042661 is about 45233.2030813649. The cubic root of 2046042661 is about 1269.5161446528.

The spelling of 2046042661 in words is "two billion, forty-six million, forty-two thousand, six hundred sixty-one".