65663153 has 4 divisors (see below), whose sum is σ = 65694720. Its totient is φ = 65631588.

The previous prime is 65663119. The next prime is 65663159. The reversal of 65663153 is 35136656.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65663153 - 2¹⁸ = 65401009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65663159) 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, 12425 + ... + 16902.

It is an arithmetic number, because the mean of its divisors is an integer number (16423680).

Almost surely, 2^65663153 is an apocalyptic number.

It is an amenable number.

65663153 is a deficient number, since it is larger than the sum of its proper divisors (31567).

65663153 is a wasteful number, since it uses less digits than its factorization.

65663153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31566.

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

The square root of 65663153 is about 8103.2803851280. The cubic root of 65663153 is about 403.4353141635.

The spelling of 65663153 in words is "sixty-five million, six hundred sixty-three thousand, one hundred fifty-three".