65342640778298 has 12 divisors (see below), whose sum is σ = 106133460909678. Its totient is φ = 30158141897520.

The previous prime is 65342640778297. The next prime is 65342640778319. The reversal of 65342640778298 is 89287704624356.

It can be written as a sum of positive squares in 3 ways, for example, as 33228964504849 + 32113676273449 = 5764457^2 + 5666893^2 .

It is not an unprimeable number, because it can be changed into a prime (65342640778297) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 96660710873 + ... + 96660711548.

Almost surely, 2^{65342640778298} is an apocalyptic number.

65342640778298 is a deficient number, since it is larger than the sum of its proper divisors (40790820131380).

65342640778298 is a wasteful number, since it uses less digits than its factorization.

65342640778298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193321422449 (or 193321422436 counting only the distinct ones).

The product of its (nonzero) digits is 975421440, while the sum is 71.

The spelling of 65342640778298 in words is "sixty-five trillion, three hundred forty-two billion, six hundred forty million, seven hundred seventy-eight thousand, two hundred ninety-eight".