65497259263 has 4 divisors (see below), whose sum is σ = 66133155088. Its totient is φ = 64861363440.

The previous prime is 65497259171. The next prime is 65497259273. The reversal of 65497259263 is 36295279456.

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 65497259263 - 2⁹ = 65497258751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65497259198 and 65497259207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65497259273) 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, 317947758 + ... + 317947963.

It is an arithmetic number, because the mean of its divisors is an integer number (16533288772).

Almost surely, 2^65497259263 is an apocalyptic number.

65497259263 is a deficient number, since it is larger than the sum of its proper divisors (635895825).

65497259263 is a wasteful number, since it uses less digits than its factorization.

65497259263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635895824.

The product of its digits is 24494400, while the sum is 58.

The spelling of 65497259263 in words is "sixty-five billion, four hundred ninety-seven million, two hundred fifty-nine thousand, two hundred sixty-three".