68332666 has 4 divisors (see below), whose sum is σ = 102499002. Its totient is φ = 34166332.

The previous prime is 68332657. The next prime is 68332699. The reversal of 68332666 is 66623386.

It is a happy number.

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., 67716441 + 616225 = 8229^2 + 785^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17083165 + ... + 17083168.

Almost surely, 2^68332666 is an apocalyptic number.

68332666 is a deficient number, since it is larger than the sum of its proper divisors (34166336).

68332666 is a wasteful number, since it uses less digits than its factorization.

68332666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34166335.

The product of its digits is 186624, while the sum is 40.

The square root of 68332666 is about 8266.3574807771. The cubic root of 68332666 is about 408.8300296247.

The spelling of 68332666 in words is "sixty-eight million, three hundred thirty-two thousand, six hundred sixty-six".