65341557009 has 40 divisors (see below), whose sum is σ = 98796772008. Its totient is φ = 43032902400.

The previous prime is 65341556963. The next prime is 65341557059. The reversal of 65341557009 is 90075514356.

65341557009 is a `hidden beast` number, since 6 + 53 + 41 + 557 + 0 + 0 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 23455841409 + 41885715600 = 153153^2 + 204660^2 .

It is not a de Polignac number, because 65341557009 - 2¹³ = 65341548817 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65341557059) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3729979 + ... + 3747455.

Almost surely, 2^65341557009 is an apocalyptic number.

It is an amenable number.

65341557009 is a deficient number, since it is larger than the sum of its proper divisors (33455214999).

65341557009 is a wasteful number, since it uses less digits than its factorization.

65341557009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18047 (or 18038 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 45.

The spelling of 65341557009 in words is "sixty-five billion, three hundred forty-one million, five hundred fifty-seven thousand, nine".