68735616 has 64 divisors (see below), whose sum is σ = 192208800. Its totient is φ = 21703680.

The previous prime is 68735549. The next prime is 68735621. The reversal of 68735616 is 61653786.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2586 + ... + 12006.

Almost surely, 2^68735616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68735616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96104400).

68735616 is an abundant number, since it is smaller than the sum of its proper divisors (123473184).

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

68735616 is a wasteful number, since it uses less digits than its factorization.

68735616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9457 (or 9445 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 68735616 is about 8290.6945426786. The cubic root of 68735616 is about 409.6320633266.

The spelling of 68735616 in words is "sixty-eight million, seven hundred thirty-five thousand, six hundred sixteen".