65576448 has 240 divisors, whose sum is σ = 229806720. Its totient is φ = 17584128.

The previous prime is 65576417. The next prime is 65576449. The reversal of 65576448 is 84467556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65576449) 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 in 23 ways as a sum of consecutive naturals, for example, 612811 + ... + 612917.

It is an arithmetic number, because the mean of its divisors is an integer number (957528).

Almost surely, 2^65576448 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 65576448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114903360).

65576448 is an abundant number, since it is smaller than the sum of its proper divisors (164230272).

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

65576448 is a wasteful number, since it uses less digits than its factorization.

65576448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 138 counting only the distinct ones).

The product of its digits is 806400, while the sum is 45.

The square root of 65576448 is about 8097.9286240371. The cubic root of 65576448 is about 403.2576637105.

The spelling of 65576448 in words is "sixty-five million, five hundred seventy-six thousand, four hundred forty-eight".