65315242533 has 16 divisors (see below), whose sum is σ = 87211949760. Its totient is φ = 43481057664.

The previous prime is 65315242507. The next prime is 65315242537. The reversal of 65315242533 is 33524251356.

It is a de Polignac number, because none of the positive numbers 2^k-65315242533 is a prime.

It is a super-2 number, since 2×65315242533² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65315242491 and 65315242500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65315242537) 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 15 ways as a sum of consecutive naturals, for example, 10751985 + ... + 10758057.

It is an arithmetic number, because the mean of its divisors is an integer number (5450746860).

Almost surely, 2^65315242533 is an apocalyptic number.

It is an amenable number.

65315242533 is a deficient number, since it is larger than the sum of its proper divisors (21896707227).

65315242533 is a wasteful number, since it uses less digits than its factorization.

65315242533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10628.

The product of its digits is 324000, while the sum is 39.

Adding to 65315242533 its reverse (33524251356), we get a palindrome (98839493889).

The spelling of 65315242533 in words is "sixty-five billion, three hundred fifteen million, two hundred forty-two thousand, five hundred thirty-three".