65663013 has 8 divisors (see below), whose sum is σ = 94285408. Its totient is φ = 40407984.

The previous prime is 65662997. The next prime is 65663033. The reversal of 65663013 is 31036656.

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

It is not a de Polignac number, because 65663013 - 2⁴ = 65662997 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 (65663033) 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, 841795 + ... + 841872.

It is an arithmetic number, because the mean of its divisors is an integer number (11785676).

Almost surely, 2^65663013 is an apocalyptic number.

It is an amenable number.

65663013 is a deficient number, since it is larger than the sum of its proper divisors (28622395).

65663013 is a wasteful number, since it uses less digits than its factorization.

65663013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683683.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 65663013 is about 8103.2717466465. The cubic root of 65663013 is about 403.4350274426.

Adding to 65663013 its reverse (31036656), we get a palindrome (96699669).

The spelling of 65663013 in words is "sixty-five million, six hundred sixty-three thousand, thirteen".