220666108 has 24 divisors (see below), whose sum is σ = 422084432. Its totient is φ = 100324224.

The previous prime is 220666099. The next prime is 220666123. The reversal of 220666108 is 801666022.

It is a self number, because there is not a number n which added to its sum of digits gives 220666108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28185 + ... + 35152.

Almost surely, 2^220666108 is an apocalyptic number.

It is an amenable number.

220666108 is a deficient number, since it is larger than the sum of its proper divisors (201418324).

220666108 is a wasteful number, since it uses less digits than its factorization.

220666108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63421 (or 63419 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 220666108 is about 14854.8344992464. The cubic root of 220666108 is about 604.2897276733.

The spelling of 220666108 in words is "two hundred twenty million, six hundred sixty-six thousand, one hundred eight".