65343520 has 96 divisors (see below), whose sum is σ = 170263296. Its totient is φ = 23500800.

The previous prime is 65343511. The next prime is 65343571. The reversal of 65343520 is 2534356.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240985 + ... + 241255.

It is an arithmetic number, because the mean of its divisors is an integer number (1773576).

Almost surely, 2^65343520 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 65343520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85131648).

65343520 is an abundant number, since it is smaller than the sum of its proper divisors (104919776).

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

65343520 is a wasteful number, since it uses less digits than its factorization.

65343520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 65343520 is about 8083.5338806737. The cubic root of 65343520 is about 402.7796392709.

Adding to 65343520 its reverse (2534356), we get a palindrome (67877876).

The spelling of 65343520 in words is "sixty-five million, three hundred forty-three thousand, five hundred twenty".