66711004 has 6 divisors (see below), whose sum is σ = 116744264. Its totient is φ = 33355500.

The previous prime is 66710983. The next prime is 66711013. The reversal of 66711004 is 40011766.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 66711004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8338872 + ... + 8338879.

Almost surely, 2^66711004 is an apocalyptic number.

It is an amenable number.

66711004 is a deficient number, since it is larger than the sum of its proper divisors (50033260).

66711004 is a wasteful number, since it uses less digits than its factorization.

66711004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16677755 (or 16677753 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 66711004 is about 8167.6804540824. The cubic root of 66711004 is about 405.5700026574.

The spelling of 66711004 in words is "sixty-six million, seven hundred eleven thousand, four".