2061165133 has 2 divisors, whose sum is σ = 2061165134. Its totient is φ = 2061165132.

The previous prime is 2061165121. The next prime is 2061165181. The reversal of 2061165133 is 3315611602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1254434724 + 806730409 = 35418^2 + 28403^2 .

It is a cyclic number.

It is not a de Polignac number, because 2061165133 - 2²⁹ = 1524294221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2061165103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1030582566 + 1030582567.

It is an arithmetic number, because the mean of its divisors is an integer number (1030582567).

Almost surely, 2^2061165133 is an apocalyptic number.

It is an amenable number.

2061165133 is a deficient number, since it is larger than the sum of its proper divisors (1).

2061165133 is an equidigital number, since it uses as much as digits as its factorization.

2061165133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 2061165133 is about 45400.0565308018. The cubic root of 2061165133 is about 1272.6361703533.

Adding to 2061165133 its reverse (3315611602), we get a palindrome (5376776735).

The spelling of 2061165133 in words is "two billion, sixty-one million, one hundred sixty-five thousand, one hundred thirty-three".