65816541 has 24 divisors (see below), whose sum is σ = 108875520. Its totient is φ = 37531296.

The previous prime is 65816533. The next prime is 65816557. The reversal of 65816541 is 14561856.

It is not a de Polignac number, because 65816541 - 2³ = 65816533 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 65816496 and 65816505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65816561) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 44571 + ... + 46023.

It is an arithmetic number, because the mean of its divisors is an integer number (4536480).

Almost surely, 2^65816541 is an apocalyptic number.

It is an amenable number.

65816541 is a deficient number, since it is larger than the sum of its proper divisors (43058979).

65816541 is a wasteful number, since it uses less digits than its factorization.

65816541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185 (or 2182 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 65816541 is about 8112.7394263590. The cubic root of 65816541 is about 403.7492091988.

The spelling of 65816541 in words is "sixty-five million, eight hundred sixteen thousand, five hundred forty-one".