66705669602 has 64 divisors (see below), whose sum is σ = 120228530688. Its totient is φ = 27352704000.

The previous prime is 66705669601. The next prime is 66705669607. The reversal of 66705669602 is 20696650766.

It is not an unprimeable number, because it can be changed into a prime (66705669601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10226102 + ... + 10232622.

It is an arithmetic number, because the mean of its divisors is an integer number (1878570792).

Almost surely, 2^66705669602 is an apocalyptic number.

66705669602 is a deficient number, since it is larger than the sum of its proper divisors (53522861086).

66705669602 is a wasteful number, since it uses less digits than its factorization.

66705669602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7355.

The product of its (nonzero) digits is 4898880, while the sum is 53.

The spelling of 66705669602 in words is "sixty-six billion, seven hundred five million, six hundred sixty-nine thousand, six hundred two".