2061611330 has 16 divisors (see below), whose sum is σ = 3712061304. Its totient is φ = 824386560.

The previous prime is 2061611311. The next prime is 2061611339. The reversal of 2061611330 is 331161602.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1663089961 + 398521369 = 40781^2 + 19963^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2061611296 and 2061611305.

It is not an unprimeable number, because it can be changed into a prime (2061611339) 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, 3170 + ... + 64290.

Almost surely, 2^2061611330 is an apocalyptic number.

2061611330 is a deficient number, since it is larger than the sum of its proper divisors (1650449974).

2061611330 is a wasteful number, since it uses less digits than its factorization.

2061611330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64501.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2061611330 is about 45404.9703226420. The cubic root of 2061611330 is about 1272.7279963246.

Adding to 2061611330 its reverse (331161602), we get a palindrome (2392772932).

The spelling of 2061611330 in words is "two billion, sixty-one million, six hundred eleven thousand, three hundred thirty".