2065891199 has 16 divisors (see below), whose sum is σ = 2124016992. Its totient is φ = 2008731648.

The previous prime is 2065891193. The next prime is 2065891213. The reversal of 2065891199 is 9911985602.

It is a cyclic number.

It is not a de Polignac number, because 2065891199 - 2⁸ = 2065890943 is a prime.

It is a super-2 number, since 2×2065891199² = 8535812892211315202, 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 (2065891193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2672177 + ... + 2672949.

It is an arithmetic number, because the mean of its divisors is an integer number (132751062).

Almost surely, 2^2065891199 is an apocalyptic number.

2065891199 is a deficient number, since it is larger than the sum of its proper divisors (58125793).

2065891199 is a wasteful number, since it uses less digits than its factorization.

2065891199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1306.

The product of its (nonzero) digits is 349920, while the sum is 50.

The square root of 2065891199 is about 45452.0758491843. The cubic root of 2065891199 is about 1273.6081079136.

The spelling of 2065891199 in words is "two billion, sixty-five million, eight hundred ninety-one thousand, one hundred ninety-nine".