65065861 has 8 divisors (see below), whose sum is σ = 78274880. Its totient is φ = 52835328.

The previous prime is 65065843. The next prime is 65065877. The reversal of 65065861 is 16856056.

65065861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 65065861 - 2⁵ = 65065829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65065861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65065801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244476 + ... + 244741.

It is an arithmetic number, because the mean of its divisors is an integer number (9784360).

Almost surely, 2^65065861 is an apocalyptic number.

It is an amenable number.

65065861 is a deficient number, since it is larger than the sum of its proper divisors (13209019).

65065861 is a wasteful number, since it uses less digits than its factorization.

65065861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489243.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 65065861 is about 8066.3412399923. The cubic root of 65065861 is about 402.2083295156.

The spelling of 65065861 in words is "sixty-five million, sixty-five thousand, eight hundred sixty-one".