63068666 has 4 divisors (see below), whose sum is σ = 94603002. Its totient is φ = 31534332.

The previous prime is 63068647. The next prime is 63068669. The reversal of 63068666 is 66686036.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 62078641 + 990025 = 7879^2 + 995^2 .

It is not an unprimeable number, because it can be changed into a prime (63068669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15767165 + ... + 15767168.

Almost surely, 2^63068666 is an apocalyptic number.

63068666 is a deficient number, since it is larger than the sum of its proper divisors (31534336).

63068666 is a wasteful number, since it uses less digits than its factorization.

63068666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31534335.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 63068666 is about 7941.5783066088. The cubic root of 63068666 is about 398.0502322902.

It can be divided in two parts, 630 and 68666, that added together give a palindrome (69296).

The spelling of 63068666 in words is "sixty-three million, sixty-eight thousand, six hundred sixty-six".