65121448295 has 4 divisors (see below), whose sum is σ = 78145737960. Its totient is φ = 52097158632.

The previous prime is 65121448241. The next prime is 65121448297. The reversal of 65121448295 is 59284412156.

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 65121448295 - 2⁸ = 65121448039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65121448297) 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 3 ways as a sum of consecutive naturals, for example, 6512144825 + ... + 6512144834.

It is an arithmetic number, because the mean of its divisors is an integer number (19536434490).

Almost surely, 2^65121448295 is an apocalyptic number.

65121448295 is a deficient number, since it is larger than the sum of its proper divisors (13024289665).

65121448295 is a wasteful number, since it uses less digits than its factorization.

65121448295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13024289664.

The product of its digits is 691200, while the sum is 47.

The spelling of 65121448295 in words is "sixty-five billion, one hundred twenty-one million, four hundred forty-eight thousand, two hundred ninety-five".