68105616 has 20 divisors (see below), whose sum is σ = 175939632. Its totient is φ = 22701856.

The previous prime is 68105603. The next prime is 68105623. The reversal of 68105616 is 61650186.

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 3 ways as a sum of consecutive naturals, for example, 709386 + ... + 709481.

Almost surely, 2^68105616 is an apocalyptic number.

It is an amenable number.

68105616 is an abundant number, since it is smaller than the sum of its proper divisors (107834016).

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

68105616 is a wasteful number, since it uses less digits than its factorization.

68105616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418878 (or 1418872 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 68105616 is about 8252.6126772071. The cubic root of 68105616 is about 408.3767185703.

The spelling of 68105616 in words is "sixty-eight million, one hundred five thousand, six hundred sixteen".