68666485 has 16 divisors (see below), whose sum is σ = 89280576. Its totient is φ = 50496768.

The previous prime is 68666473. The next prime is 68666497. The reversal of 68666485 is 58466686.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (68666473) and next prime (68666497).

It is a cyclic number.

It is not a de Polignac number, because 68666485 - 2¹¹ = 68664437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5739 + ... + 13048.

It is an arithmetic number, because the mean of its divisors is an integer number (5580036).

Almost surely, 2^68666485 is an apocalyptic number.

It is an amenable number.

68666485 is a deficient number, since it is larger than the sum of its proper divisors (20614091).

68666485 is a wasteful number, since it uses less digits than its factorization.

68666485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18852.

The product of its digits is 1658880, while the sum is 49.

The square root of 68666485 is about 8286.5243015392. The cubic root of 68666485 is about 409.4946878055.

The spelling of 68666485 in words is "sixty-eight million, six hundred sixty-six thousand, four hundred eighty-five".