2065640532419 has 2 divisors, whose sum is σ = 2065640532420. Its totient is φ = 2065640532418.

The previous prime is 2065640532401. The next prime is 2065640532521. The reversal of 2065640532419 is 9142350465602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2065640532419 - 2³⁶ = 1996921055683 is a prime.

It is a super-2 number, since 2×2065640532419² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2065640532719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032820266209 + 1032820266210.

It is an arithmetic number, because the mean of its divisors is an integer number (1032820266210).

Almost surely, 2^{2065640532419} is an apocalyptic number.

2065640532419 is a deficient number, since it is larger than the sum of its proper divisors (1).

2065640532419 is an equidigital number, since it uses as much as digits as its factorization.

2065640532419 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 2065640532419 in words is "two trillion, sixty-five billion, six hundred forty million, five hundred thirty-two thousand, four hundred nineteen".