68677566 has 8 divisors (see below), whose sum is σ = 137355144. Its totient is φ = 22892520.

The previous prime is 68677547. The next prime is 68677573. The reversal of 68677566 is 66577686.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

68677566 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5723125 + ... + 5723136.

It is an arithmetic number, because the mean of its divisors is an integer number (17169393).

Almost surely, 2^68677566 is an apocalyptic number.

68677566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68677566 is a wasteful number, since it uses less digits than its factorization.

68677566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11446266.

The product of its digits is 2540160, while the sum is 51.

The square root of 68677566 is about 8287.1928902373. The cubic root of 68677566 is about 409.5167139151.

The spelling of 68677566 in words is "sixty-eight million, six hundred seventy-seven thousand, five hundred sixty-six".