65160404216066 has 16 divisors (see below), whose sum is σ = 98382720361464. Its totient is φ = 32366655573504.

The previous prime is 65160404215979. The next prime is 65160404216093. The reversal of 65160404216066 is 66061240406156.

65160404216066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 61328711500225 + 3831692715841 = 7831265^2 + 1957471^2 .

It is a super-2 number, since 2×65160404216066² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65160404216066.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122603885 + ... + 123134208.

Almost surely, 2^{65160404216066} is an apocalyptic number.

65160404216066 is a deficient number, since it is larger than the sum of its proper divisors (33222316145398).

65160404216066 is a wasteful number, since it uses less digits than its factorization.

65160404216066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245738965.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The spelling of 65160404216066 in words is "sixty-five trillion, one hundred sixty billion, four hundred four million, two hundred sixteen thousand, sixty-six".