2065630511 has 16 divisors (see below), whose sum is σ = 2376249408. Its totient is φ = 1758931200.

The previous prime is 2065630493. The next prime is 2065630579. The reversal of 2065630511 is 1150365602.

It is a cyclic number.

It is not a de Polignac number, because 2065630511 - 2⁶ = 2065630447 is a prime.

It is a super-2 number, since 2×2065630511² = 8533658815948242242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2065630591) 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, 881201 + ... + 883541.

It is an arithmetic number, because the mean of its divisors is an integer number (148515588).

Almost surely, 2^2065630511 is an apocalyptic number.

2065630511 is a deficient number, since it is larger than the sum of its proper divisors (310618897).

2065630511 is a wasteful number, since it uses less digits than its factorization.

2065630511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 2065630511 is about 45449.2080349042. The cubic root of 2065630511 is about 1273.5545348572.

The spelling of 2065630511 in words is "two billion, sixty-five million, six hundred thirty thousand, five hundred eleven".