65678085 has 48 divisors (see below), whose sum is σ = 124899840. Its totient is φ = 31662720.

The previous prime is 65678083. The next prime is 65678101. The reversal of 65678085 is 58087656.

65678085 is a `hidden beast` number, since 6 + 567 + 8 + 0 + 85 = 666.

65678085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65678085 - 2¹ = 65678083 is a prime.

It is a super-2 number, since 2×65678085² = 8627221698534450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 65678085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65678083) 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 47 ways as a sum of consecutive naturals, for example, 136876 + ... + 137354.

It is an arithmetic number, because the mean of its divisors is an integer number (2602080).

Almost surely, 2^65678085 is an apocalyptic number.

It is an amenable number.

65678085 is a deficient number, since it is larger than the sum of its proper divisors (59221755).

65678085 is a wasteful number, since it uses less digits than its factorization.

65678085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778 (or 775 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The square root of 65678085 is about 8104.2016880134. The cubic root of 65678085 is about 403.4658926501.

The spelling of 65678085 in words is "sixty-five million, six hundred seventy-eight thousand, eighty-five".