68535216 has 60 divisors (see below), whose sum is σ = 200152368. Its totient is φ = 21850752.

The previous prime is 68535197. The next prime is 68535221. The reversal of 68535216 is 61253586.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7035 + ... + 13658.

Almost surely, 2^68535216 is an apocalyptic number.

It is an amenable number.

68535216 is an abundant number, since it is smaller than the sum of its proper divisors (131617152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68535216 is a wasteful number, since it uses less digits than its factorization.

68535216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20730 (or 20721 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 68535216 is about 8278.5998816225. The cubic root of 68535216 is about 409.2335791136.

The spelling of 68535216 in words is "sixty-eight million, five hundred thirty-five thousand, two hundred sixteen".