65112768 has 168 divisors, whose sum is σ = 222961200. Its totient is φ = 18579456.

The previous prime is 65112731. The next prime is 65112787. The reversal of 65112768 is 86721156.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 84288 + ... + 85056.

It is an arithmetic number, because the mean of its divisors is an integer number (1327150).

Almost surely, 2^65112768 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 65112768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111480600).

65112768 is an abundant number, since it is smaller than the sum of its proper divisors (157848432).

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

65112768 is a wasteful number, since it uses less digits than its factorization.

65112768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804 (or 781 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 65112768 is about 8069.2482921273. The cubic root of 65112768 is about 402.3049590637.

The spelling of 65112768 in words is "sixty-five million, one hundred twelve thousand, seven hundred sixty-eight".