65018648 has 8 divisors (see below), whose sum is σ = 121909980. Its totient is φ = 32509320.

The previous prime is 65018641. The next prime is 65018669. The reversal of 65018648 is 84681056.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65018641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4063658 + ... + 4063673.

Almost surely, 2^65018648 is an apocalyptic number.

It is an amenable number.

65018648 is a deficient number, since it is larger than the sum of its proper divisors (56891332).

65018648 is a wasteful number, since it uses less digits than its factorization.

65018648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8127337 (or 8127333 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 65018648 is about 8063.4141652280. The cubic root of 65018648 is about 402.1110226922. Note that the first 3 decimals are identical.

The spelling of 65018648 in words is "sixty-five million, eighteen thousand, six hundred forty-eight".