65631268 has 12 divisors (see below), whose sum is σ = 115048192. Its totient is φ = 32760360.

The previous prime is 65631253. The next prime is 65631281. The reversal of 65631268 is 86213656.

65631268 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11088 + ... + 15943.

Almost surely, 2^65631268 is an apocalyptic number.

It is an amenable number.

65631268 is a deficient number, since it is larger than the sum of its proper divisors (49416924).

65631268 is a wasteful number, since it uses less digits than its factorization.

65631268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27642 (or 27640 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 65631268 is about 8101.3127331316. The cubic root of 65631268 is about 403.3700029649.

The spelling of 65631268 in words is "sixty-five million, six hundred thirty-one thousand, two hundred sixty-eight".