68685616 has 40 divisors (see below), whose sum is σ = 137731760. Its totient is φ = 33156864.

The previous prime is 68685611. The next prime is 68685623. The reversal of 68685616 is 61658686.

It is not an unprimeable number, because it can be changed into a prime (68685611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92575 + ... + 93313.

It is an arithmetic number, because the mean of its divisors is an integer number (3443294).

Almost surely, 2^68685616 is an apocalyptic number.

It is an amenable number.

68685616 is an abundant number, since it is smaller than the sum of its proper divisors (69046144).

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

68685616 is a wasteful number, since it uses less digits than its factorization.

68685616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941 (or 935 counting only the distinct ones).

The product of its digits is 414720, while the sum is 46.

The square root of 68685616 is about 8287.6785651954. The cubic root of 68685616 is about 409.5327137092.

The spelling of 68685616 in words is "sixty-eight million, six hundred eighty-five thousand, six hundred sixteen".