68216061 has 8 divisors (see below), whose sum is σ = 95741920. Its totient is φ = 43083792.

The previous prime is 68216059. The next prime is 68216077. The reversal of 68216061 is 16061286.

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

It is not a de Polignac number, because 68216061 - 2¹ = 68216059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68216021) 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, 598330 + ... + 598443.

It is an arithmetic number, because the mean of its divisors is an integer number (11967740).

Almost surely, 2^68216061 is an apocalyptic number.

It is an amenable number.

68216061 is a deficient number, since it is larger than the sum of its proper divisors (27525859).

68216061 is a wasteful number, since it uses less digits than its factorization.

68216061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196795.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 68216061 is about 8259.3014837818. The cubic root of 68216061 is about 408.5973504380.

The spelling of 68216061 in words is "sixty-eight million, two hundred sixteen thousand, sixty-one".