65003326513 has 4 divisors (see below), whose sum is σ = 68827051620. Its totient is φ = 61179601408.

The previous prime is 65003326447. The next prime is 65003326517. The reversal of 65003326513 is 31562330056.

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

It can be written as a sum of positive squares in 2 ways, for example, as 53855556624 + 11147769889 = 232068^2 + 105583^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65003326513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65003326517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1911862528 + ... + 1911862561.

It is an arithmetic number, because the mean of its divisors is an integer number (17206762905).

Almost surely, 2^65003326513 is an apocalyptic number.

It is an amenable number.

65003326513 is a deficient number, since it is larger than the sum of its proper divisors (3823725107).

65003326513 is a wasteful number, since it uses less digits than its factorization.

65003326513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3823725106.

The product of its (nonzero) digits is 48600, while the sum is 34.

Adding to 65003326513 its reverse (31562330056), we get a palindrome (96565656569).

The spelling of 65003326513 in words is "sixty-five billion, three million, three hundred twenty-six thousand, five hundred thirteen".