68678566 has 16 divisors (see below), whose sum is σ = 114505488. Its totient is φ = 30628000.

The previous prime is 68678543. The next prime is 68678569. The reversal of 68678566 is 66587686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68678569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28285 + ... + 30616.

It is an arithmetic number, because the mean of its divisors is an integer number (7156593).

Almost surely, 2^68678566 is an apocalyptic number.

68678566 is a deficient number, since it is larger than the sum of its proper divisors (45826922).

68678566 is a wasteful number, since it uses less digits than its factorization.

68678566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58967.

The product of its digits is 2903040, while the sum is 52.

The square root of 68678566 is about 8287.2532240785. The cubic root of 68678566 is about 409.5187015352.

The spelling of 68678566 in words is "sixty-eight million, six hundred seventy-eight thousand, five hundred sixty-six".