65440315 has 8 divisors (see below), whose sum is σ = 78749280. Its totient is φ = 52204992.

The previous prime is 65440301. The next prime is 65440321. The reversal of 65440315 is 51304456.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65440315 - 2⁵ = 65440283 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16434 + ... + 20023.

It is an arithmetic number, because the mean of its divisors is an integer number (9843660).

Almost surely, 2^65440315 is an apocalyptic number.

65440315 is a deficient number, since it is larger than the sum of its proper divisors (13308965).

65440315 is a wasteful number, since it uses less digits than its factorization.

65440315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36821.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 65440315 is about 8089.5188361237. The cubic root of 65440315 is about 402.9784236858.

The spelling of 65440315 in words is "sixty-five million, four hundred forty thousand, three hundred fifteen".