65140909695 has 32 divisors (see below), whose sum is σ = 120841113600. Its totient is φ = 33231303072.

The previous prime is 65140909633. The next prime is 65140909697. The reversal of 65140909695 is 59690904156.

65140909695 is a `hidden beast` number, since 65 + 1 + 409 + 0 + 96 + 95 = 666.

It is not a de Polignac number, because 65140909695 - 2³⁴ = 47961040511 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65140909697) 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 31 ways as a sum of consecutive naturals, for example, 10486575 + ... + 10492784.

It is an arithmetic number, because the mean of its divisors is an integer number (3776284800).

Almost surely, 2^65140909695 is an apocalyptic number.

65140909695 is a deficient number, since it is larger than the sum of its proper divisors (55700203905).

65140909695 is a wasteful number, since it uses less digits than its factorization.

65140909695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20979396 (or 20979390 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 54.

The spelling of 65140909695 in words is "sixty-five billion, one hundred forty million, nine hundred nine thousand, six hundred ninety-five".