68769666 has 24 divisors (see below), whose sum is σ = 170287104. Its totient is φ = 19648440.

The previous prime is 68769619. The next prime is 68769667. The reversal of 68769666 is 66696786.

It is not an unprimeable number, because it can be changed into a prime (68769667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 272770 + ... + 273021.

It is an arithmetic number, because the mean of its divisors is an integer number (7095296).

Almost surely, 2^68769666 is an apocalyptic number.

68769666 is an abundant number, since it is smaller than the sum of its proper divisors (101517438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68769666 is a wasteful number, since it uses less digits than its factorization.

68769666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545806 (or 545803 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 68769666 is about 8292.7477955139. The cubic root of 68769666 is about 409.6996928421.

The spelling of 68769666 in words is "sixty-eight million, seven hundred sixty-nine thousand, six hundred sixty-six".