65135663 has 4 divisors (see below), whose sum is σ = 65376288. Its totient is φ = 64895040.

The previous prime is 65135657. The next prime is 65135671. The reversal of 65135663 is 36653156.

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 65135663 - 2⁶ = 65135599 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 (65131663) 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, 119906 + ... + 120447.

It is an arithmetic number, because the mean of its divisors is an integer number (16344072).

Almost surely, 2^65135663 is an apocalyptic number.

65135663 is a deficient number, since it is larger than the sum of its proper divisors (240625).

65135663 is a wasteful number, since it uses less digits than its factorization.

65135663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240624.

The product of its digits is 48600, while the sum is 35.

The square root of 65135663 is about 8070.6668249904. Note that the first 3 decimals coincide. The cubic root of 65135663 is about 402.3521064613.

The spelling of 65135663 in words is "sixty-five million, one hundred thirty-five thousand, six hundred sixty-three".