65136422985 has 32 divisors (see below), whose sum is σ = 107715750912. Its totient is φ = 33576426240.

The previous prime is 65136422909. The next prime is 65136423017. The reversal of 65136422985 is 58922463156.

It is a happy number.

It is not a de Polignac number, because 65136422985 - 2⁹ = 65136422473 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282727 + ... + 458483.

It is an arithmetic number, because the mean of its divisors is an integer number (3366117216).

Almost surely, 2^65136422985 is an apocalyptic number.

It is an amenable number.

65136422985 is a deficient number, since it is larger than the sum of its proper divisors (42579327927).

65136422985 is a wasteful number, since it uses less digits than its factorization.

65136422985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176593.

The product of its digits is 3110400, while the sum is 51.

The spelling of 65136422985 in words is "sixty-five billion, one hundred thirty-six million, four hundred twenty-two thousand, nine hundred eighty-five".