65605330 has 32 divisors (see below), whose sum is σ = 138257280. Its totient is φ = 21943680.

The previous prime is 65605307. The next prime is 65605339. The reversal of 65605330 is 3350656.

It is not an unprimeable number, because it can be changed into a prime (65605339) 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, 8560 + ... + 14299.

It is an arithmetic number, because the mean of its divisors is an integer number (4320540).

Almost surely, 2^65605330 is an apocalyptic number.

65605330 is an abundant number, since it is smaller than the sum of its proper divisors (72651950).

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

65605330 is a wasteful number, since it uses less digits than its factorization.

65605330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22914.

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 65605330 is about 8099.7117232652. The cubic root of 65605330 is about 403.3168576169.

Adding to 65605330 its reverse (3350656), we get a palindrome (68955986).

The spelling of 65605330 in words is "sixty-five million, six hundred five thousand, three hundred thirty".