2661306033 has 16 divisors (see below), whose sum is σ = 3588670656. Its totient is φ = 1754138880.

The previous prime is 2661306001. The next prime is 2661306047. The reversal of 2661306033 is 3306031662.

It is not a de Polignac number, because 2661306033 - 2⁵ = 2661306001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2661306233) 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, 159285 + ... + 175197.

It is an arithmetic number, because the mean of its divisors is an integer number (224291916).

Almost surely, 2^2661306033 is an apocalyptic number.

It is an amenable number.

2661306033 is a deficient number, since it is larger than the sum of its proper divisors (927364623).

2661306033 is a wasteful number, since it uses less digits than its factorization.

2661306033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16544.

The product of its (nonzero) digits is 11664, while the sum is 30.

The square root of 2661306033 is about 51587.8477259907. The cubic root of 2661306033 is about 1385.7927114104.

Adding to 2661306033 its reverse (3306031662), we get a palindrome (5967337695).

The spelling of 2661306033 in words is "two billion, six hundred sixty-one million, three hundred six thousand, thirty-three".