65199065 has 8 divisors (see below), whose sum is σ = 78304320. Its totient is φ = 52115632.

The previous prime is 65199041. The next prime is 65199083. The reversal of 65199065 is 56099156.

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 65199065 - 2¹⁶ = 65133529 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2066 + ... + 11604.

It is an arithmetic number, because the mean of its divisors is an integer number (9788040).

Almost surely, 2^65199065 is an apocalyptic number.

It is an amenable number.

65199065 is a deficient number, since it is larger than the sum of its proper divisors (13105255).

65199065 is a wasteful number, since it uses less digits than its factorization.

65199065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10911.

The product of its (nonzero) digits is 72900, while the sum is 41.

The square root of 65199065 is about 8074.5937978328. The cubic root of 65199065 is about 402.4826118024.

Subtracting from 65199065 its reverse (56099156), we obtain a palindrome (9099909).

The spelling of 65199065 in words is "sixty-five million, one hundred ninety-nine thousand, sixty-five".