65408516 has 12 divisors (see below), whose sum is σ = 114580032. Its totient is φ = 32671368.

The previous prime is 65408501. The next prime is 65408561. The reversal of 65408516 is 61580456.

It is a happy number.

It is a super-3 number, since 3×65408516³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3440 + ... + 11943.

It is an arithmetic number, because the mean of its divisors is an integer number (9548336).

Almost surely, 2^65408516 is an apocalyptic number.

It is an amenable number.

65408516 is a deficient number, since it is larger than the sum of its proper divisors (49171516).

65408516 is a wasteful number, since it uses less digits than its factorization.

65408516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16450 (or 16448 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 65408516 is about 8087.5531528392. The cubic root of 65408516 is about 402.9131408550.

The spelling of 65408516 in words is "sixty-five million, four hundred eight thousand, five hundred sixteen".