65144168 has 16 divisors (see below), whose sum is σ = 123288480. Its totient is φ = 32267248.

The previous prime is 65144147. The next prime is 65144197. The reversal of 65144168 is 86144156.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 37196 + ... + 38907.

It is an arithmetic number, because the mean of its divisors is an integer number (7705530).

Almost surely, 2^65144168 is an apocalyptic number.

It is an amenable number.

65144168 is a deficient number, since it is larger than the sum of its proper divisors (58144312).

65144168 is a wasteful number, since it uses less digits than its factorization.

65144168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76216 (or 76212 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 65144168 is about 8071.1937159258. The cubic root of 65144168 is about 402.3696178909.

The spelling of 65144168 in words is "sixty-five million, one hundred forty-four thousand, one hundred sixty-eight".