65316661355 has 16 divisors (see below), whose sum is σ = 85747698144. Its totient is φ = 47368442880.

The previous prime is 65316661351. The next prime is 65316661373. The reversal of 65316661355 is 55316661356.

It is a happy number.

It is not a de Polignac number, because 65316661355 - 2² = 65316661351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65316661351) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1662704 + ... + 1701533.

It is an arithmetic number, because the mean of its divisors is an integer number (5359231134).

Almost surely, 2^65316661355 is an apocalyptic number.

65316661355 is a deficient number, since it is larger than the sum of its proper divisors (20431036789).

65316661355 is a wasteful number, since it uses less digits than its factorization.

65316661355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3364606.

The product of its digits is 1458000, while the sum is 47.

Subtracting from 65316661355 its reverse (55316661356), we obtain a palindrome (9999999999).

The spelling of 65316661355 in words is "sixty-five billion, three hundred sixteen million, six hundred sixty-one thousand, three hundred fifty-five".