65020121327 has 4 divisors (see below), whose sum is σ = 74308710096. Its totient is φ = 55731532560.

The previous prime is 65020121261. The next prime is 65020121333. The reversal of 65020121327 is 72312102056.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65020121327 - 2⁸ = 65020121071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65020121327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65020121627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4644294374 + ... + 4644294387.

It is an arithmetic number, because the mean of its divisors is an integer number (18577177524).

Almost surely, 2^65020121327 is an apocalyptic number.

65020121327 is a deficient number, since it is larger than the sum of its proper divisors (9288588769).

65020121327 is an equidigital number, since it uses as much as digits as its factorization.

65020121327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9288588768.

The product of its (nonzero) digits is 5040, while the sum is 29.

The spelling of 65020121327 in words is "sixty-five billion, twenty million, one hundred twenty-one thousand, three hundred twenty-seven".