65065776 has 80 divisors (see below), whose sum is σ = 176179200. Its totient is φ = 20666880.

The previous prime is 65065771. The next prime is 65065787. The reversal of 65065776 is 67756056.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (65065771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108325 + ... + 108923.

It is an arithmetic number, because the mean of its divisors is an integer number (2202240).

Almost surely, 2^65065776 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 65065776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88089600).

65065776 is an abundant number, since it is smaller than the sum of its proper divisors (111113424).

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

65065776 is a wasteful number, since it uses less digits than its factorization.

65065776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714 (or 708 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 42.

The square root of 65065776 is about 8066.3359711830. The cubic root of 65065776 is about 402.2081543714.

The spelling of 65065776 in words is "sixty-five million, sixty-five thousand, seven hundred seventy-six".