65113320 has 64 divisors (see below), whose sum is σ = 196136640. Its totient is φ = 17292800.

The previous prime is 65113313. The next prime is 65113331. The reversal of 65113320 is 2331156.

65113320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32755 + ... + 34685.

It is an arithmetic number, because the mean of its divisors is an integer number (3064635).

Almost surely, 2^65113320 is an apocalyptic number.

65113320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65113320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98068320).

65113320 is an abundant number, since it is smaller than the sum of its proper divisors (131023320).

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

65113320 is a wasteful number, since it uses less digits than its factorization.

65113320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226 (or 2222 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 65113320 is about 8069.2824959844. The cubic root of 65113320 is about 402.3060959207.

Adding to 65113320 its reverse (2331156), we get a palindrome (67444476).

The spelling of 65113320 in words is "sixty-five million, one hundred thirteen thousand, three hundred twenty".