660222185708 has 12 divisors (see below), whose sum is σ = 1159781940240. Its totient is φ = 328855917072.

The previous prime is 660222185687. The next prime is 660222185713. The reversal of 660222185708 is 807581222066.

It is a super-2 number, since 2×660222185708² (a number of 24 digits) contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 313792763 + ... + 313794866.

It is an arithmetic number, because the mean of its divisors is an integer number (96648495020).

Almost surely, 2^660222185708 is an apocalyptic number.

It is an amenable number.

660222185708 is a deficient number, since it is larger than the sum of its proper divisors (499559754532).

660222185708 is a wasteful number, since it uses less digits than its factorization.

660222185708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627587896 (or 627587894 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 660222185708 in words is "six hundred sixty billion, two hundred twenty-two million, one hundred eighty-five thousand, seven hundred eight".