68566694 has 16 divisors (see below), whose sum is σ = 117899808. Its totient is φ = 29296512.

The previous prime is 68566691. The next prime is 68566697. The reversal of 68566694 is 49666586.

It is an interprime number because it is at equal distance from previous prime (68566691) and next prime (68566697).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68566691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2549 + ... + 11984.

It is an arithmetic number, because the mean of its divisors is an integer number (7368738).

Almost surely, 2^68566694 is an apocalyptic number.

68566694 is a deficient number, since it is larger than the sum of its proper divisors (49333114).

68566694 is a wasteful number, since it uses less digits than its factorization.

68566694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14879.

The product of its digits is 1866240, while the sum is 50.

The square root of 68566694 is about 8280.5008302638. The cubic root of 68566694 is about 409.2962227376.

The spelling of 68566694 in words is "sixty-eight million, five hundred sixty-six thousand, six hundred ninety-four".