2065021611 has 8 divisors (see below), whose sum is σ = 2755092624. Its totient is φ = 1375815840.

The previous prime is 2065021601. The next prime is 2065021613. The reversal of 2065021611 is 1161205602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2065021611 - 2⁶ = 2065021547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2065021613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210720 + ... + 220301.

It is an arithmetic number, because the mean of its divisors is an integer number (344386578).

Almost surely, 2^2065021611 is an apocalyptic number.

2065021611 is a deficient number, since it is larger than the sum of its proper divisors (690071013).

2065021611 is a wasteful number, since it uses less digits than its factorization.

2065021611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432621.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 2065021611 is about 45442.5088545956. The cubic root of 2065021611 is about 1273.4293844393.

The spelling of 2065021611 in words is "two billion, sixty-five million, twenty-one thousand, six hundred eleven".