660222886 has 16 divisors (see below), whose sum is σ = 1007435520. Its totient is φ = 324420480.

The previous prime is 660222883. The next prime is 660222911. The reversal of 660222886 is 688222066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660222883) 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, 271950 + ... + 274366.

It is an arithmetic number, because the mean of its divisors is an integer number (62964720).

Almost surely, 2^660222886 is an apocalyptic number.

660222886 is a deficient number, since it is larger than the sum of its proper divisors (347212634).

660222886 is a wasteful number, since it uses less digits than its factorization.

660222886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4719.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 660222886 is about 25694.8027040489. The cubic root of 660222886 is about 870.7567670010.

The spelling of 660222886 in words is "six hundred sixty million, two hundred twenty-two thousand, eight hundred eighty-six".