66588805222 has 16 divisors (see below), whose sum is σ = 101261197440. Its totient is φ = 32835160512.

The previous prime is 66588805219. The next prime is 66588805223. The reversal of 66588805222 is 22250888566.

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 66588805222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66588805223) 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, 2472843 + ... + 2499625.

It is an arithmetic number, because the mean of its divisors is an integer number (6328824840).

Almost surely, 2^66588805222 is an apocalyptic number.

66588805222 is a deficient number, since it is larger than the sum of its proper divisors (34672392218).

66588805222 is a wasteful number, since it uses less digits than its factorization.

66588805222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43887.

The product of its (nonzero) digits is 3686400, while the sum is 52.

The spelling of 66588805222 in words is "sixty-six billion, five hundred eighty-eight million, eight hundred five thousand, two hundred twenty-two".