65140034369 has 2 divisors, whose sum is σ = 65140034370. Its totient is φ = 65140034368.

The previous prime is 65140034347. The next prime is 65140034567. The reversal of 65140034369 is 96343004156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57861897025 + 7278137344 = 240545^2 + 85312^2 .

It is a cyclic number.

It is not a de Polignac number, because 65140034369 - 2¹² = 65140030273 is a prime.

It is a super-2 number, since 2×65140034369² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65140034969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32570017184 + 32570017185.

It is an arithmetic number, because the mean of its divisors is an integer number (32570017185).

Almost surely, 2^65140034369 is an apocalyptic number.

It is an amenable number.

65140034369 is a deficient number, since it is larger than the sum of its proper divisors (1).

65140034369 is an equidigital number, since it uses as much as digits as its factorization.

65140034369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 65140034369 in words is "sixty-five billion, one hundred forty million, thirty-four thousand, three hundred sixty-nine".