65116985 has 8 divisors (see below), whose sum is σ = 78250560. Its totient is φ = 52020144.

The previous prime is 65116981. The next prime is 65116991. The reversal of 65116985 is 58961156.

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 65116985 - 2² = 65116981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65116981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5117 + ... + 12506.

It is an arithmetic number, because the mean of its divisors is an integer number (9781320).

Almost surely, 2^65116985 is an apocalyptic number.

It is an amenable number.

65116985 is a deficient number, since it is larger than the sum of its proper divisors (13133575).

65116985 is a wasteful number, since it uses less digits than its factorization.

65116985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18367.

The product of its digits is 64800, while the sum is 41.

The square root of 65116985 is about 8069.5095885686. The cubic root of 65116985 is about 402.3136439113.

The spelling of 65116985 in words is "sixty-five million, one hundred sixteen thousand, nine hundred eighty-five".