65663232 has 72 divisors (see below), whose sum is σ = 176061984. Its totient is φ = 21725184.

The previous prime is 65663207. The next prime is 65663233. The reversal of 65663232 is 23236656.

It is a junction number, because it is equal to n+sod(n) for n = 65663193 and 65663202.

It is not an unprimeable number, because it can be changed into a prime (65663233) 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, 148003 + ... + 148445.

Almost surely, 2^65663232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65663232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88030992).

65663232 is an abundant number, since it is smaller than the sum of its proper divisors (110398752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65663232 is a wasteful number, since it uses less digits than its factorization.

65663232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 641 counting only the distinct ones).

The product of its digits is 38880, while the sum is 33.

The square root of 65663232 is about 8103.2852596956. The cubic root of 65663232 is about 403.4354759558.

Adding to 65663232 its reverse (23236656), we get a palindrome (88899888).

The spelling of 65663232 in words is "sixty-five million, six hundred sixty-three thousand, two hundred thirty-two".