65005305447 has 8 divisors (see below), whose sum is σ = 89469667840. Its totient is φ = 41938906680.

The previous prime is 65005305389. The next prime is 65005305457. The reversal of 65005305447 is 74450350056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65005305447 - 2²² = 65001111143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65005305457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349490797 + ... + 349490982.

It is an arithmetic number, because the mean of its divisors is an integer number (11183708480).

Almost surely, 2^65005305447 is an apocalyptic number.

65005305447 is a deficient number, since it is larger than the sum of its proper divisors (24464362393).

65005305447 is a wasteful number, since it uses less digits than its factorization.

65005305447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698981813.

The product of its (nonzero) digits is 252000, while the sum is 39.

The spelling of 65005305447 in words is "sixty-five billion, five million, three hundred five thousand, four hundred forty-seven".