2065640532514 has 16 divisors (see below), whose sum is σ = 3336838703352. Its totient is φ = 953362620288.

The previous prime is 2065640532419. The next prime is 2065640532521. The reversal of 2065640532514 is 4152350465602.

It can be written as a sum of positive squares in 4 ways, for example, as 1676597677225 + 389042855289 = 1294835^2 + 623733^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2522662 + ... + 3239614.

Almost surely, 2^{2065640532514} is an apocalyptic number.

2065640532514 is a deficient number, since it is larger than the sum of its proper divisors (1271198170838).

2065640532514 is a wasteful number, since it uses less digits than its factorization.

2065640532514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827781.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 2065640532514 in words is "two trillion, sixty-five billion, six hundred forty million, five hundred thirty-two thousand, five hundred fourteen".