65890168 has 8 divisors (see below), whose sum is σ = 123544080. Its totient is φ = 32945080.

The previous prime is 65890151. The next prime is 65890169. The reversal of 65890168 is 86109856.

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 (65890169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4118128 + ... + 4118143.

It is an arithmetic number, because the mean of its divisors is an integer number (15443010).

Almost surely, 2^65890168 is an apocalyptic number.

It is an amenable number.

65890168 is a deficient number, since it is larger than the sum of its proper divisors (57653912).

65890168 is a wasteful number, since it uses less digits than its factorization.

65890168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8236277 (or 8236273 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 65890168 is about 8117.2758977381. The cubic root of 65890168 is about 403.8997071568.

The spelling of 65890168 in words is "sixty-five million, eight hundred ninety thousand, one hundred sixty-eight".