68516616 has 64 divisors (see below), whose sum is σ = 196375680. Its totient is φ = 19514880.

The previous prime is 68516611. The next prime is 68516663. The reversal of 68516616 is 61661586.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (68516611) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 103326 + ... + 103986.

It is an arithmetic number, because the mean of its divisors is an integer number (3068370).

Almost surely, 2^68516616 is an apocalyptic number.

It is an amenable number.

68516616 is an abundant number, since it is smaller than the sum of its proper divisors (127859064).

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

68516616 is a wasteful number, since it uses less digits than its factorization.

68516616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294 (or 1290 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 68516616 is about 8277.4764270277. The cubic root of 68516616 is about 409.1965546771.

The spelling of 68516616 in words is "sixty-eight million, five hundred sixteen thousand, six hundred sixteen".