68606066 has 12 divisors (see below), whose sum is σ = 105769818. Its totient is φ = 33374592.

The previous prime is 68606053. The next prime is 68606077. The reversal of 68606066 is 66060686.

It can be written as a sum of positive squares in 3 ways, for example, as 68145025 + 461041 = 8255^2 + 679^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9791 + ... + 15266.

Almost surely, 2^68606066 is an apocalyptic number.

68606066 is a deficient number, since it is larger than the sum of its proper divisors (37163752).

68606066 is a wasteful number, since it uses less digits than its factorization.

68606066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25133 (or 25096 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 68606066 is about 8282.8778815095. The cubic root of 68606066 is about 409.3745490429.

The spelling of 68606066 in words is "sixty-eight million, six hundred six thousand, sixty-six".